Simon Alternate Agenda Dec. Revision 1 Granting Sacramento Natural Gas Storage, LLC's, Application for a Certificate of Public Convenience and Necessity to Construct and Operate a Gas Storage Facility
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Attachment A

Sacramento Natural Gas Storage Project

CPUC CEQA Findings of Fact

Proceeding No. A.07-04-013

 

CPUC CEQA Findings of Fact

Regarding the Final Environmental Impact Report for the

Sacramento Natural Gas Storage Project

State Clearinghouse Number 2007112089

Proceeding Number A.07-04-013

________________________________________________________________________

I. Certification

The California Public Utilities Commission (CPUC or Commission) hereby certifies the Sacramento Natural Gas Storage (SNGS) Project Final Environmental Impact Report (EIR), which consists of the original Draft EIR (April 2009) as revised in the Final EIR (June 2010) and Addendum to the Final EIR (July 2011) (State Clearinghouse Number 2007112089). In accordance with California Environmental Quality Act (CEQA) Guidelines Section 15090, the CPUC, as the California Lead Agency for the project, certifies that:

The CPUC has exercised independent judgment in accordance with California Public Resources Code (PRC), Section 21082.1(c)1 in retaining its own environmental consultant and directing the consultant in preparation of the EIR, as well as reviewing, analyzing, and revising material prepared by the consultant.

CEQA Guidelines Sections 15120 through 15132 require the EIR to contain specific information. The various elements of the EIR satisfy these CEQA requirements.

Volume 1 of the Final EIR contains the comments and recommendations received on the Draft EIR, individual responses to these comments, and a list of persons, organizations, and public agencies commenting on the Draft EIR. Volume 2 of the Final EIR consists of the Draft EIR, revised in response to comments and other information received. The Addendum clarifies the Final EIR but does not identify any new significant environmental effects or make any revisions that increase the severity of previously identified significant effects.

The CPUC finds that the EIR is a comprehensive, detailed, and complete document that discusses clearly the advantages and disadvantages of the environmentally superior alternatives, the Proposed Project, and other alternatives.

The CPUC finds that the EIR is a competent and comprehensive informational tool, as CEQA requires it to be. The quality of the information in the EIR is such that we are confident of its accuracy. We have considered the information in the EIR in approving the Proposed Project. Accordingly, we certify and adopt the EIR it in its entirety, and incorporate it by reference in this decision.

The Commission may not approve or carry out a project for which an EIR has been certified that identifies one or more significant effects on the environment that would occur if the project were approved or carried out unless we make one or more specific findings with respect to each significant effect, and those findings must be supported by substantial evidence in the record.

In accordance with PRC Section 21081 and CEQA Guidelines Section 150912, the Commission has made one or more specific written findings regarding significant impacts associated with the project. These findings are presented below, along with the rationale behind each of the findings. Concurrent with the adoption of these findings, the Commission adopts the Mitigation Monitoring, Compliance, and Reporting Program (MMCRP) as presented in the Final EIR (provided in Section G of the Final EIR).

The documents and other materials that constitute the record of proceedings on which the project findings are based are located at the CPUC's office: 505 Van Ness Avenue, San Francisco, California 94102. The custodian of these documents is the Energy Division, CEQA Unit. This information is provided in compliance with PRC Section 21081.6(a)(2) and 14 California Code of Regulations (CCR) Section 15091(e).

II. Project Background

II.1 Project Description Summary

SNGS, LLC submitted an application (Application No. 07-04-013) and a Proponent's Environmental Assessment (PEA) on April 9, 2007, for the SNGS Facility. The purpose of the application is to obtain a Certificate of Public Convenience and Necessity (CPCN) from the CPUC. A supplement to the original application and PEA was submitted on July 16, 2007. Additionally, an amendment to the application and PEA was submitted on October 9, 2007. This amendment included the addition of the Yolo County interconnect with Pacific Gas and Electric (PG&E) Line 172 in Yolo County and construction of a metering station in the City of West Sacramento. On September 12, 2008, SNGS, LLC filed a second amendment, which withdrew its proposal to include the Yolo County interconnect and metering station.

As discussed in Final EIR Section B, Description of Proposed Project, as proposed by SNGS, LLC, the SNGS Project (or Proposed Project) would use a depleted natural gas reservoir (Florin Gas Field) located within the City of Sacramento and partially within and adjacent to an unincorporated area of the County of Sacramento to store up to 7.5 billion cubic feet (bcf) of working natural gas. The Proposed Project includes the existing underground natural gas storage reservoir, a wellhead site, a compressor station, a buried 16-inch interconnection pipeline between the wellhead and compressor site, and a buried 16-inch interconnection pipeline between the compressor site and Sacramento Municipal Utilities District (SMUD) Line 700. Please refer to Final EIR Section B, Description of Proposed Project, for additional details regarding the project.

The Proposed Project would store up to 7.5 bcf of working natural gas in the depleted Florin Gas Field reservoir, which is situated approximately 3,800 feet below the ground surface. Natural gas was previously extracted from the Florin Gas Field by Proctor and Gamble, Vendada National, TXO Production Corporation, and Union Oil Company until 1987 when the natural gas supply was depleted. Shortly thereafter, the wells and appurtenance facilities were capped and abandoned in accordance with regulations set forth by the California Department of Conservation's Division of Oil, Gas, and Geothermal Resources (DOGGR) because there was no additional use for the wells.

The Florin Gas Field is centered at the corner of Power Inn Road and Wagon Trail Way in the City of Sacramento. Approximately 43% of the field is in the City of Sacramento and 57% is located in Sacramento County. The wellhead site, compressor station, and associated interconnecting pipelines would be situated within the City of Sacramento. The wellhead site would be located at the northeast corner of the intersection of Junipero Street and Power Inn Road; the compressor station would be located north of the wellhead site on the historic Sacramento Army Depot that is known as Depot Park.

II.2 Project Objectives/Purpose and Need

CEQA Guidelines (Section 15126.6(a)) requires that project objectives be set forth in an EIR in order to help define alternatives to the Proposed Project that meet most of the basic project objectives. SNGS, LLC lists the following basic objectives of the Proposed Project (see Final EIR Section A.2.2, Statement of Objectives):

Provide strategically located natural gas storage in California.

Provide a secure and reliable gas supply for the Sacramento metropolitan area in the event of a disruption of service from the main supply pipeline that services the area.

Satisfy SMUD's natural gas storage needs to specifically provide a fuel supply to power their electrical generating plants. The total volumetric capacity available to SMUD under its Storage Service Agreement with SNGS, LLC is 4.0 bcf, which yields approximately a 30-day supply.

III. Environmental Review Process and the EIR

The CEQA environmental review process for the SNGS Project began with the CPUC's issuance of the Notice of Preparation (NOP) of an EIR in November 2007 and led to the finalization of an EIR in 2010. The public involvement milestones include the following:

IV. Environmental Impacts and Findings

PRC Section 21081 states that no public agency shall approve or carry out a project for which an EIR has been completed that identifies one or more significant effects on the environment unless the public agency makes one or more of the following findings:

Pursuant to PRC Section 21081 and CEQA Guidelines Section 15091, the Commission has made one or more of these specific written findings regarding significant impacts associated with the Proposed Project. Such findings are made in Sections IV.2 and IV.3 of these CEQA Findings of Fact. The environmental impacts and findings presented herein consist of those determinations within the published Draft and Final EIRs.

The EIR evaluation included a detailed analysis of impacts in 12 environmental disciplines, analyzing the project and seven alternatives, including three alternative gas field locations, three pipeline alignment alternatives, and the No Project Alternative. The EIR discloses the environmental impacts expected to occur from construction and operation of the SNGS Project. Where feasible, mitigation measures were identified to minimize or avoid significant environmental effects. In addition, SNGS, LLC proposes certain measures as part of the Proposed Project to reduce the direct and indirect impacts that would result from project activities. These measures, referred to as Applicant Proposed Measures (APMs) are provided in Section B.7 (Table B-5, Applicant Proposed Measures for Proposed Project) of the Final EIR. The resource/issue area analysis of the EIR assumed the APMs to be part of the project. APMs are discussed below in the findings for each applicable environmental impact.

IV.1 Environmental Impacts Found to be Less Than Significant

Based on the issue area assessments in the EIR, the Commission determines that the project will have no impact or less-than-significant impacts for several resources/issues as summarized in the table below. The rationale for the conclusion that no significant impacts or less-than-significant impacts would occur in each of the resource/issue areas in the table is based on the detailed discussion of these impacts in the issue area analyses in Section D of the Draft EIR and Final EIR as clarified by the Addendum to the Final EIR. Some of the resource/issue areas in the below table have multiple impacts. While the below table shows impacts that are less than significant, Sections IV and V of these CEQA Finding of Fact should be read in concert to understand the full range of impacts, or lack thereof, within a resource/issue area.

Resource

Impact Evaluation Category

Rationale for No Impact or Less-than-Significant Impact

Air Quality

A-1: Conflict with or Obstruct Implementation of the Applicable Air Quality Plan

Construction emissions are generally accounted for in the air quality plans for the Sacramento region and considered short-term. While the Proposed Project would not be specifically accounted for in the regional emissions inventory, its construction emissions are well within the estimated emissions for the construction equipment category. Furthermore, regional measures for reducing off-road emissions include the use of financial incentives to accelerate voluntary retirement or retrofit of older, high-emitting equipment, resulting in reduced off-road emissions. The Proposed Project would not conflict with or obstruct implementation of the applicable air quality plan, and this impact would be less than significant. (See Final EIR, pp. D.2-21 to D.2-22.)

A-3: Create a Cumulatively Considerable Net Increase of a Criteria Pollutant for Which the Region is in Nonattainment Under Applicable Federal or State Ambient Air Quality Standards (Including Releasing Emissions that Exceed Quantitative Thresholds for Ozone Precursors)

As discussed under Impact A-2, the construction and operational emissions associated with the Proposed Project, after mitigation, would not exceed the recommended thresholds of significance. Because the SVAB is in nonattainment for the state and federal O3 and PM10 standards, a project that creates individually significant air quality impacts would also be considered to create cumulatively significant air quality impacts. However, the Proposed Project, with application of the mitigation measure for NOx construction emissions, would have less-than-significant impacts individually, as discussed under Impact A-3. When evaluated together with the other criteria discussed above, the Proposed Project would have less-than-significant cumulative impacts. (See Final EIR, pp. D.2-29 to D.2-30.)

A-4: Expose Sensitive Receptors to Substantial Pollutant Concentrations

The health effects due to toxic air contaminants (TAC) emissions from operation of the project would be less than the SMAQMD thresholds. Therefore, the impacts would be less than significant. (See Final EIR, pp. D.2-30 to D.2-32.)

A-5: Create Objectionable Odors Affecting a Substantial Number of People

An odorant (methyl mercaptan) would be added to the natural gas at the compressor station before injecting it into the storage field. Under normal circumstances, aboveground piping would be maintained to minimize leakage of odorized gas. The compressor station's valves, flanges, and other piping components would be monitored for leaks by operations personnel as part of the day-to-day operation of the facility. SNGS, LLC would provide incident, quarterly and annual reports to the CPUC in accordance with CPUC Rule 112-E, Subpart B. Additional description of leak monitoring, response, and reporting is found in Final EIR Section B.5. While not currently applicable to the Proposed Project, the SMAQMD, as a potential control measure listed in the 2006 SRNA 8-Hour Ozone Rate-of-Progress Plan (El Dorado County Air Quality Management District et al. 2006), has committed to adopt Rule 461, which would regulate fugitive emissions from equipment leaks in valves, pumps, compressors, pressure relief devices, flanges, and threaded connections at gas wells and associated transmission systems. If adopted, the proposed control measure would establish inspection and repair requirements for leaking components. It should also be noted that in the case of odors resulting from methyl mercaptan, this odorizing agent provides a warning that a gas leak has occurred and that impacted persons should evacuate the area. As a result, odors associated with methyl mercaptan would not be considered an adverse impact. Based on the discussion above, odor impacts due to leakage of natural gas would be less than significant. (See Final EIR, pp. D.2-32 to D.2-34.)

A-6: Compliance with Applicable District, State, and Federal Air Quality Rules and Regulations

SNGS, LLC must demonstrate compliance with all applicable rules and regulations and would continue to maintain compliance during the operation of the Proposed Project. Therefore, this impact is less than significant. (See Final EIR, p. D.2-34.)

A-7: Compliance with EPA General and Transportation Conformity Regulations

The construction emissions would be less than the de minimis thresholds. Therefore, a general conformity determination by the ACOE would not be required, and this impact would be considered less than significant. (See Final EIR, pp. D.2-34 to D.2-36.)

A-8: Potential to Impede or Conflict with the Emissions Reduction Targets and Strategies Prescribed in or Developed to Implement AB 32

While the Proposed Project would result in emissions of GHGs, no adopted guidance exists to indicate what level of GHG emissions would be considered substantial enough to result in a significant adverse impact on global climate. However, it is generally the case that an individual project of this size is of insufficient magnitude by itself to influence climate change or result in a substantial contribution to the global GHG inventory. Thus, GHG impacts from a project are recognized as exclusively cumulative impacts; there are no noncumulative GHG emission impacts from a climate change perspective (See Final EIR, pp. D.2-36 to D.2-38.)

Further discussion of the project's GHG emissions and their impact on global climate are addressed in Final EIR Section F.4, Cumulative Impacts. (See Final EIR, pp. F-4 to F-10.)

Biological Resources

B-4: Impacts to Wildlife Movement or Corridors

Construction of the proposed pipeline would tunnel under Morrison Creek using HDD. Morrison Creek is a potential wildlife movement corridor. There may be short-term disturbances to this corridor. However, the level of disturbance is considered low due to its temporary nature, therefore, this impact is considered less than significant. No impacts to fish habitat are expected. The proposed compressor station and wellhead site are not considered to be located in movement corridors. Therefore, no impact will be associated with those components. (See Final EIR, p. D.3-39.)

B-5: Conflicts with Regional Habitat Conservation Planning Efforts

A portion of the Proposed Project within the unincorporated portion of Sacramento County is located within the South Sacramento HCP. The activities of the Proposed Project would mainly be in the vicinity of the Urban Services Boundaries of the plan. No resources of concern occur in here because the area is urbanized. Because this portion of the project is in an urban area, the impact is considered less than significant. (See Final EIR, p. D.3-39.)

B-6: Conflict with any Local Policies or Ordinances Protecting Biological Resources, Such as a Tree Preservation Policy or Ordinance.

Implementation of the Proposed Project would not impact any of the trees in the area so there would be no conflict with the City of Sacramento Tree Preservation Ordinance, therefore, no impact would occur.

Cultural Resources

C-1: Construction Could Affect Known Cultural Resources

The project components were surveyed for cultural resources. No sites were found; therefore, no impact to known cultural resources would occur. The compressor station site is located within the former Sacramento Army Depot. Development of the proposed compressor station would not impact any structures and therefore, would not impact any historical features of the former Army Depot.

The pipeline would align through portions of the former Sacramento Army Depot. The potentially historic UPRR alignment (also both the Southern Pacific and Western Pacific alignments) parallel this alignment. It would be crossed through horizontal directional drilling (HDD) and will not be significantly impacted. The spur line into the former Army Depot will be crossed; however, this is not considered historic. No impact to any structures of the former Army Depot would occur. (See Final EIR, p. D.4-12.)

C-3: Future Maintenance Operations Could Affect Cultural Resource

As no cultural resources have been identified within the wellhead site and compressor station perimeters, as well as within the connecting pipeline segments right-of-way, no impacts to cultural resources would occur due to future maintenance operations. (See Final EIR, p. D.4-15.)

Geology and Soils

G-1: Risk to People or Structures within a Known Alquist-Priolo Earthquake Fault Zone

No known or suspected faults appear to cross the Proposed Project area. The Proposed Project would not expose people or structures to potential substantial adverse effects due to rupture of a known Alquist-Priolo earthquake fault. Therefore, people and structures would not be at risk and no impact would occur. (See Final EIR, pp. D.5-17 to D.5-18.)

G-2:Exposure of People or Structures to Strong Seismic Ground Shaking (natural gas field)

Although strong seismic ground shaking could result in gas migration along an active fault line, no fault-related structures have been identified within the project area. The nearest active faulting, Dunnigan Hills Fault, is located approximately 19 miles to the northwest. In addition, experienced California Reservoir Engineers indicate that the reservoir has demonstrated its ability to successfully contain natural gas for millions of years. Moreover, the observed abrupt lateral changes in subsurface lithology (sand/shale contact) have been attributed to stratigraphic variation as opposed to structural-fault-related causes. The Proposed Project would not expose people or structures to potential substantial adverse effects due to strong seismic ground shaking; thus, impacts would be less than significant. (See Final EIR, pp. D.5-18 to D.5-19.)

G-3: Seismically Induced Ground Failures, Including Liquefaction, Lateral Spreading, and Seismic Slope Instability

Neither the wellhead site nor compressor station site is located within an area which the State of California has designated as a Seismic Hazard Zone for Liquefaction and/or Slope Instability (California Geological Survey 2002b). In addition, based on the site-specific data collected and soils laboratory testing, the potential for liquefaction is considered remote. Since the potential for liquefaction is considered remote, the project components would not expose people or structures to potential substantial adverse effects due to seismic-related ground failure, including liquefaction. Therefore, impacts would be less than significant. (See Final EIR, pp. D.5-19 to D.5-20.)

G-4: Slope Instability, Including Landslides, Earth Flows, and Debris Flows

Since there are no hillsides or slopes that could become unstable or over-steepened, land sliding is not considered a potential hazard. The Proposed Project would not expose people or structures to potential substantial adverse effects due to landslides; therefore, there would be no impact. (See Final EIR, p. D.5-20.)

G-5: Soils that Could Damage Foundations or Have High Erosion Potential

The construction of the wellhead site, compressor station, and pipelines would result in earth-disturbing activities, but loss of topsoil due to erosion is not expected to be significant due to the flat topography. With implementation of APMs 1, 2, and 14, the Proposed Project would not result in substantial soil erosion or the loss of topsoil; therefore, impacts would be less than significant. (See Final EIR, pp. D.5-20 to D.5-21.)

G-6: Geologic Unit that Could Become Unstable

There are no hillsides or slopes at or near the Proposed Project area that could become unstable or over-steepened. In addition, the project components are not located on a geologic unit or soil that is unstable, or that could result in on- or off-site landslide, lateral spreading, subsidence, liquefaction, or collapse; thus, there would be no impact. (See Final EIR, p. D.5-21.)

G-7: Expansive Soils

The results of the subsurface geotechnical soils investigation from data collected by advancing soil borings indicates the presence of lean clays explored in the compressor facility area as well as in the area of the wellhead site. The potential for expansive soil may exist at each location, but can be mitigated, if present, by the application of proper engineering design to meet CBC and Natural Gas Pipeline Safety Act (49 U.S.C. 1671-1686) requirements. With implementation of APM 4, the Proposed Project would not result in the creation of substantial risks to life or property due to the presence of expansive soils; therefore, impacts would be less than significant. (See Final EIR, p. D.5-21.)

G-8: Adequacy of Soils to Support Septic/Wastewater Systems No Impact

The project does not propose a septic or new wastewater system for any of the project components. The toilets at the wellhead site and compressor station would be connected to the existing wastewater system. Therefore, there would be no impact. (See Final EIR, p. D.5-21.)

Hazardous Materials, Public health and Safety

HAZ-1c: Use, Transportation, and Storage of Methyl Mercaptan

The methyl mercaptan will be stored at the compressor station in a structure designed for that purpose. Because the compressor station is located in an industrial area away from the general public and because the methyl mercaptan will be contained within the specially designed compressor station structure, the impact associated with a release of stored material at the site is considered less than significant. (See Final EIR, p. D.6-19.)

HAZ-3: Potential for the Project to Emit Hazardous Emissions or Handle Acutely Hazardous Waste within 0.25 Mile of an Existing or Proposed School

No schools are within 0.25 mile of the pipelines, compressor station, and wellhead site. In addition, no school sites are located above the projected boundaries of the limits of the Florin Gas Field. Therefore, the impact would be considered less than significant. It is not expected that gas would migrate to that extent.

Note that the methyl mercaptan would be transported to the compressor station and wellhead sites via truck during nighttime hours. As discussed under Impact HAZ-1c, the delivery of methyl mercaptan could pass within 0.15 mile of a school. Implementation of Mitigation Measures HAZ-1ci, HAZ-1cii, and HAZ-1ciii would reduce impacts from transporting methyl mercaptan to less than significant. (See Final EIR, p. D.6-46, as well as CEQA Findings of Fact Section IV.2.5.)

HAZ-4: Project is Located on a Site on a List Compiled Pursuant to Government Code Section 65962.5, Indicating it Would Present a Significant Hazard to the Public and the Environment

The compressor station site and portions of pipeline segments one and two are in portions of Depot Park. The site is listed on several federal, state, and local regulatory databases, including the U.S. Environmental Protection Agency's (EPA's) National Priorities List (NPL), the Resource Conservation and Recovery Act's (RCRA's) Corrective Action Sites (CORRACTS), the State Priority List (SPL), and the Comprehensive Environmental Response, Compensation, and Liability Information System (CERCLIS). According to the environmental site assessment, all soil contamination has been fully remediated and no further action is required. Groundwater contamination on site and down-gradient of the site was being remediated during conduction of the environmental site assessment. The U.S. Army has accepted responsibility for all on-site contamination and any future contamination found within the boundaries of Depot Park. No other sites have been identified on the pipeline alignments, compressor station, or wellhead sites that are on the list. Therefore, no significant impact is anticipated. (See Final EIR, pp. D.6-46 and D.6-47.)

HAZ-5: Interference with an Adopted Emergency Response Plan or Emergency Evacuation Route

Currently, no emergency response plan exists for the area and no formal evacuation route is within the Proposed Project area. Therefore, no impact is anticipated. As discussed in APM 9 (see Section B.7 of the Final EIR), SNGS, LLC will prepare an emergency response plan or emergency action plan for the Proposed Project. (See Final EIR, p. D.6-47.)

Hydrology and Water Quality

H-1: Water Quality Degradation from Erosion and Sedimentation During Construction

The erosion potential for exposed soils within the sites during construction would be relatively low, considering the relatively flat nature of the sites. Even with slight relief, soil detachment, runoff, and subsequent sedimentation are possible. Similarly, wind erosion and sedimentation resulting from mud tracked onto roadways could occur. Sedimentation is considered a pollutant and can have adverse impacts to water quality resulting from increases in turbidity, nutrient loads, and aquatic habitat degradation. However, SNGS, LLC has proposed APMs 1, 2, and 14 to reduce erosion and control sedimentation from construction. These measures require implementation of erosion and sediment best management practices (BMPs); confining construction activities to well-defined work zones; avoidance of sensitive features, including adjacent waters and wetlands; and conducting a Worker Environmental Awareness Program (WEAP), which includes training on all mitigation measures; including BMPs; an erosion and sediment plan; and the covering of trucks hauling soils, sand, and other loose materials. Implementation of these APMs would protect water quality in the project area due to erosion from construction activities; therefore, this impact is considered less than significant. (See Final EIR, pp. D.7-15 to D.7-16.)

H-2:Degradation of Water Quality Through Spill of Potentially Harmful Materials Used in Construction

The primary receiving waters for runoff from proposed construction activities, including the wellhead site, compressor station, and pipeline construction, include Morrison Creek, Elder Creek, the remnant Morrison Creek corridor, wetlands, other drainageways, the Sacramento Valley Groundwater Basin, and the South American Subbasin. SNGS, LLC has proposed APMs 7, 8, and 12 to reduce the potential for an inadvertent release and to provide guidelines for containing and cleaning up spills in the event that a hazardous material is released to the ground. The APMs require that hazardous materials be stored in designated storage areas; any refueling, service, and equipment maintenance activities occur at least 100 feet away from sensitive environmental resources; and any refueling, service, and equipment maintenance activities would be done with absorbent material or drip pan underneath equipment to contain spilled fuel or fluids. In addition, APM 8 requires development of a Hazardous Materials Contingency Plan and Health and Safety Plan for quick and safe cleanup of accidental spills occurring during construction. Implementation of these APMs would protect the water quality of both surface water and groundwater in the project area from accidental spills of hazardous materials occurring during construction. Therefore, this impact is considered less than significant. (See Final EIR, p. D.7-16.)

H-3:Impacts to Surface Waters (above ground facilities)

There are no streams or creeks within the proposed wellhead or compressor station site limits. Therefore, there would be no direct impacts to surface waters at these project sites. Further, APM 13 requires that, following construction, the pipeline right-of-way (ROW) be graded to pre-construction grades and contours and be revegetated with an appropriate seed mix, which would reduce impacts to surface water during operation to less than significant. (See Final EIR, p. D.7-17.)

H-4: Increased Runoff from New Impervious Areas and Alteration of Existing Drainage Patterns

(Pipeline Segments 1 and 2)

Construction of the proposed pipelines would not result in increased runoff, as there are no impervious surfaces associated with installation of the pipelines. During construction, there could be a minor alteration of drainage patterns due to the spoils adjacent to the trenches; however, as installation of the pipelines is proposed during the dry season, and due to the temporary nature (approximately 3 days) of the areas being exposed, this is considered less than significant. After construction of the pipelines, excavated soils would be backfilled into the open trenches, and the area of potential effect would be graded to preconstruction grades and contours. Therefore, there would be no increased runoff or alteration of drainage patterns, and no long-term impacts would occur. (See Final EIR, p. D.7-19.)

H-5: Construction Impacts to Groundwater Disturbance and Water Quality Degradation

(Compressor Station)

Construction of the compressor station will be above groundwater levels and no impact would occur. (See Final EIR, p. D.7-20.)

 

H-7:Construction in a Potential Dam Inundation Area

The proposed wellhead site and compressor station sites could be affected by a dam failure. However, since the risk of dam inundation and resulting adverse environmental consequences is considered low, this impact would be considered less than significant.

The project pipeline segments could be affected by a dam failure. However, since they are located underground and would not be substantially affected by flooding, and since the risk of dam inundation and resulting adverse environmental consequences is considered low, this impact would be considered less than significant. (See Final EIR, p. D.7-22.)

H-8: Operation and Maintenance Impacts to Surface Water and Groundwater Quality. (Wellhead Site, Abandoned Wells, Compressor Station, Pipeline Segments 1 and 2)

Maintenance of the proposed wellhead site and compressor station would entail periodic ground checks and routine repairs of the equipment. The equipment of the wellhead site would be accessed on paved or gravel roads within the walls of the wellhead site, and no impacts to surface water would occur. Equipment for the compressor station would be inside a structure, and no impacts to surface water would occur. In addition, operation of the pipelines is not expected to have impacts to hydrology and water quality. Maintenance will generally be limited to use of smart pigs for pipeline inspection, which would not create water quality impacts.

During operations, the wellhead site will include two water storage tanks that will store produced water taken from the stored natural gas. There is a potential that this water could contain natural gas liquids (NGLs). Since the gas field is considered a dry field containing little NGL, it is expected that the levels will be low and either the water in the tanks will be reinjected into the reservoir or will be disposed of by an approved waste disposal firm that will reuse the material. Therefore, no significant impact would occur.

The abandoned wells have been sealed into the cap rock according to requirements of DOGGR, and DOGGR will reevaluate the existing wells and take any action as to additional modifications to these wells; therefore, the failure of these abandoned wells is remote and less than significant. The new wells will be constructed under the supervision of DOGGR. Each well will be drilled to approximately 100 feet below the freshwater table and a casement will be placed and cemented back to the surface. The well will then be completed through the cap rock and a casement again placed and cemented through the cap rock. This would effectively block any migration of gas into the aquifer and is considered less than significant. In addition, APM 5 requires SNGS, LLC to complete engineering and geology studies and an injection plan and submit them to DOGGR for approval. These studies would describe the well drilling and abandonment plans; reservoir characteristics; all geologic units, aquifers, and oil and gas zones; and the monitoring system to ensure that injected gas is confined to the intended zone.

In addition, implementation of the Proposed Project is not expected to impact current remediation programs associated with the current VOC contamination at the former Sacramento Army Depot. Pipelines and other facilities shall be designed to avoid existing wells and piping. Use of casings and sealing of the casings will prevent interaction with contaminated groundwater during drilling of gas wells. (See Final EIR, pp. D.7-22 to D.7-24, and Addendum to the Final EIR, pp. 4 and 5.)

Land Use , Agriculture and Recreation

LU-1: Conflict with an Applicable Land Use Plan, Policy, or Regulation

The Proposed Project would be consistent with applicable General Plan objective, goals, and policies relevant to the City of Sacramento project components. In addition, project facilities are also consistent with the Sacramento City/County Bikeway Master Plan, City of Sacramento Parks Master Plan, Sacramento Housing and Redevelopment Agency: Army Depot Redevelopment Plan and Amendment to Plan, Army Depot Implementation Plan 2005-2009, Enterprise Zone Designation, and City of Sacramento Army Depot Reuse Plan (City Agreement 95-070). The Proposed Project would also be consistent with applicable General Plan objectives, goals, and policies relevant to the County of Sacramento. Therefore, less-than-significant impacts associated with applicable plans and policies would occur. (See Final EIR, pp. D.8-28 to D.8-54.)

LU-2: Physically Divide an Established Community

The wellhead site and pipeline segment one would be constructed on land situated east of and adjacent to existing residences within the Avondale/Glen Elder Neighborhood Community. Temporary adverse impacts associated with construction and operation of the wellhead site and pipeline segment one would not physically divide the adjacent community, and therefore impacts would be less than significant.

Aside from the wellhead site and pipeline segment one, no other project components would be situated adjacent to residential land uses. The nearest residences to the compressor station site are situated approximately 2,250 feet to the west and within the Avondale/Glen Elder Neighborhood Association (AGENA) boundary. Construction nuisances associated with the compressor station and pipeline segment two would not be discernable, given the distance and interfering structures. Therefore, construction and operation of both the compressor station and pipeline segment two would not physically divide an established community and there would be no impact.

Use of the existing Florin Gas Field for gas storage does not entail aboveground disturbances (aside from operational facilities described above). Therefore, no impacts associated with physically dividing an established community would occur with use of the existing Florin Gas Field. (See Final EIR, pp. D.8-54 to D.8-55.)

LU-3: Disruption of an Established Land Use (Compressor Station)

The compressor station site is situated in a controlled-access area that would result in minimal impacts on surrounding land uses: the site is surrounded by the remnant Morrison Creek channel and open space to the south, by industrial uses and a parking lot to the north, and by open space to the west and east. No impacts to established land uses surrounding the compressor station are anticipated during construction and operation of the compressor station. (See Final EIR, p. D.8-56.)

LU-4:Displace an Established Land Use

Construction and operation of the Proposed Project would not require additional easements or acquisition of property. Pipelines would be installed within an existing roadway and under the railroad ROWs. No impacts associated with displacement of an established land use would occur. (See Final EIR, p. D.8-58.)

LU-5:Substantially Deteriorate a Recreational Facility or Disrupt Recreational Activities

The wellhead site and pipeline segment one are located adjacent to Danny Nunn Park. No direct intrusion into the parkland would occur. Aside from temporary noise-related impacts (addressed in Section D.9, Noise and Vibration, of the Final EIR) during construction activities, no other disruptions or physical restrictions to access would occur. Therefore, impacts to recreational resources associated with the Danny Nunn Park would be less than significant. (See Final EIR, p. D.8-58.)

 

LU-6: Convert Farmland to Non-Agricultural Use

The Proposed Project would not affect any lands designated by the Department of Agriculture as Farmland. Pipeline installation and operation activities would not preclude agricultural activities nor result in the conversion of farmland to non-agricultural uses, and therefore, no impacts would occur. (See Final EIR pp. D.8-58 and D.8-59.)

LU-7: Conflict with an Existing Agricultural Use or a Williamson Act Contract

The Proposed Project would not affect any properties under a Williamson Act contract or conflict with an existing agricultural use. (See Final EIR, p. D.8-59.)

Noise and Vibration

N-1: Construction Activities Would Temporarily Increase Local Noise Levels (Compressor Station and Pipelines)

Construction noise at the compressor station and pipeline segments one and two would comply with the City of Sacramento's allowable construction noise standards, resulting in a less-than-significant impact. (See Final EIR, p. D.9-9.)

N-2: Vibration Could Cause a Temporary Nuisance During Construction

Construction activities, such as a heavy trucks passing over large potholes or bumps, could produce perceptible vibration within approximately 50 feet. Because the closest sensitive receptor is located across Power Inn Road, approximately 200 feet from the proposed wellhead site, temporary impacts associated with construction-related vibration would be less than significant. In addition, vibration from drilling activities may exceed 80 VdB at the wellhead during drilling operations. Because the nearest residence would be 200 feet from the nearest drilling rig and the directional drilling areas would be greater than 1,000 feet, it is expected that groundborne vibration will attenuate at the closest residence so that this impact may be considered less than significant during drilling operations. (See Final EIR, p. D.9-11.)

N-3: Noise from Operation of the Wellhead Site

No gas compression would occur at the wellhead site. Noise at the operating wellhead site would only be with the piping system, pumps, and a backup generator and are anticipated to be below the City's allowable noise thresholds, since these facilities would be housed in structures and will be behind block walls. Therefore, noise from operating the wellhead would be less than significant. (See Final EIR, p. D.9-11.)

N-4: Noise and Vibration from Operation of the Compressor Station

Because the compressor site is approximately 2,250 feet from the nearest residence, noise levels would attenuate to approximately 35 dBA, resulting in a less-than-significant impact. With regard to the future city park sites within Depot Park, which would be located within 0.25 mile of the compressor station, noise levels would attenuate to approximately 40 dBA, resulting in a less-than-significant impact. Vibration of the operation facility is also expected to be low and will attenuate to very low levels at the locations of any residences, resulting in a less-than-significant impact. (See Final EIR, p. D.9-11.)

Population and Housing

P-1: Direct or Indirectly Induced Population Growth

As the Proposed Project would be supporting anticipated regional growth rather than facilitating future energy development, it is not expected that the Proposed Project itself would increase regional population. Therefore, there would be no population growth-related impacts. (See Final EIR, p. D.10-7.)

P-2: Induced Demand for Housing

Because few, if any, construction workers are expected to permanently relocate to the area as a result of construction activities associated with the SNGS Facility, no new demand for housing would occur. Temporary accommodations might be needed during construction, but with numerous hotels and motels in the area, impacts would be less than significant. (See Final EIR, p. D.10-7.)

P-3: Displacement of People or Existing Housing

No elements of the Proposed Project would require the removal or relocation of any residential units or business uses. Therefore, the Proposed Project would not result in any displacement impact. (See Final EIR, p. D.10-8.)

P-4: Environmental Justice (regarding safety of residents please refer to Final EIR Section D.6, Hazardous Materials, Public Health and Safety)

The residential neighborhoods that are located above the Proposed Project's underground natural gas reservoir would be considered disadvantaged according to EPA guidelines. The aboveground facilities that are planned for the project would be located on vacant land, some of which is on the former Army Depot site that is not located in a residential neighborhood. Aboveground facilities are adjacent to disadvantaged populations. Given that the project is compatible from a land-use perspective (see Final EIR Section D.8, Land Use, Agriculture, and Recreational Uses) and would not displace existing uses, it would not disproportionally degrade minority or low-income communities. Furthermore, the applicant has proposed to pay a royalty to each property owner living above the Florin Gas Field during the duration of the Proposed Project. Therefore, it is anticipated that the project would result in equity3 of economic benefits of the Proposed Project in low-income/minority communities. (See Final EIR, p. D.10-8.)

P-5: Urban Decay and Degradation

Because the Proposed Project will not result in significant land use changes, no potential significant impact resulting in urban decay or degradation from the project is anticipated. (See Final EIR, p. D.10-9.)

Public Services and Utilities

U-1: Utility System Disruptions

(Natural Gas Storage Reservoir)

The natural gas storage reservoir is an existing facility. Therefore, there would be no impacts associated with utility disruptions. (See Final EIR, p. D.11-9.)

U-2: Public Service System Disruption

(Schools)

The Proposed Project would not generate a need for school facilities and there would be no impact (See Final EIR, p. D.11-12.)

U-3: Project-Required Utility and Public Service Demands

Neither construction nor operation of the Proposed Project will use water or generate solid waste in amounts exceeding the capacity of local facilities serving the area. (See Final EIR, pp. D.11-12 to D.11-13.)

Traffic and Transportation

T-1:Temporary Road and Lane Closure (Wellhead and Compressor Station)

Construction of the wellhead site and compressor station would result in less-than-significant impacts as activities are not expected to require road or lane closures. (See Final EIR, pp. D.12-8 to D.12-9.)

T-4: Impacts of Construction on Transit and Rail Operations

Construction of approximately 1,800 feet of pipeline segment one would occur adjacent to the Power Inn Road ROW and no lane closures will be necessary. There are no bus routes adjacent to segment one along Power Inn Road; therefore, no impacts to transit during construction activities would occur. Heading northward toward the compressor station site, the proposed underground pipeline would cross beneath railroad tracks of the Union Pacific Railroad (UPRR). SNGS, LLC would use horizontal direction drilling (HDD) methods to direct the pipeline under Elder Creek Road and the UPRR tracks, which would eliminate conflicts and disruption to rail operations. UPRR requires projects proposing directional bore crossing beneath UPRR ROW to obtain a Crossing Permit. In addition, the Proposed Project would be required to comply with the Interim Guidelines for HDD under an ROW. With obtainment of a Crossing Permit and compliance with the UPRR HDD Interim Guidelines, no impacts to rail operations during construction activities are expected to occur. The tie-in at Fruitridge Road would be located within the City of Sacramento street ROW and may require a lane closure, which could result in a temporary impact to traffic that could affect Bus Route 61. Because this is a temporary construction impact and would not require rerouting of Bus Route 61, it is considered less than significant. (See Final EIR, pp. D.12-13 to D.12-14.)

T-7: Construction Would Cause Temporary Loss of Parking

All construction vehicles and equipment would be staged within the proposed wellhead site, compressor station, or within the public ROW (within temporary construction easements and permanent power line easements) along the proposed pipeline alignment route depending upon location of construction activities, therefore, no loss of public parking would occur. During construction, parking spaces in a manufacturing distribution center storage and loading yard on private property along the pipeline construction route east of Power Inn Road, would be temporarily lost but would ultimately be restored upon completion of construction. Therefore, due to the temporary nature of construction, the loss of parking is considered a less-than-significant impact. (See Final EIR, p. D.12-15.)

T-8:Conflict with Planned Roadway Improvement Projects

According to potentially affected jurisdictions, no roadway projects are planned near the wellhead site, compressor station, or pipeline construction route. While the Proposed Project would introduce new permanent pipelines into the ROW of Power Inn Road and Fruitridge Road, these pipelines would be located at a depth that would not conflict with planned or future roadway improvement projects. Additionally, there are no planned roadway improvement projects identified by the City of Sacramento for Power Inn Road or Fruitridge Road. Therefore, no impacts to planned roadway improvement projects would occur. (See Final EIR, p. D.12-15.)

Visual

V-1:Short-Term Visual Impacts: Scenic Views

Construction activities at the wellhead site, compressor station site, and pipeline segments one and two are considered temporary. Most construction activities at the wellhead site would be screened once the 10-foot-high masonry wall is constructed around the site. Further, the construction of the compressor station site as well as portions of pipeline segment two would not be visible to sensitive receptors. Therefore, short-term visual impacts to scenic resources due to aboveground facilities would be less than significant.

As the natural gas reservoir site is situated below the ground, no construction impacts from this project component would occur. (See Final EIR, pp. D.13-17 to D.13-18.)

V-2: Long-Term Visual Impacts: Scenic Views and Lighting

Due to the visual screening of the wellhead site by a 10-foot masonry wall and by landscaping along Power Inn Road and Junipero Street, long-term visual resource impacts would be less than significant. Further, as the compressor station site is not visible to nearby sensitive receptors and it is within an industrial use area, a less-than-significant impact to the existing visual resources would occur. In addition, since there would be no substantial change in the existing ambient nighttime lighting surrounding the wellhead and compressor station sites, a less-than-significant impact would occur due to light and glare.

Once construction is complete, the pipelines would be located underground and would be hidden from sight; therefore, impacts would be less than significant.

The natural gas reservoir site is situated approximately 3,800 feet below the ground. Therefore, there would be no long-term visual impacts from this project component. (See Final EIR, pp. D.13-18 to D.13-21.)

Item

Individual Risk (IR)

Aggregate Risk

Exposure Location

Single Specific Location

Cumulative, Along the Length of the Entire Project

Probability of Exposure

100%

24 hours per day,

365 days per year

Actual Value, Normally Less Than 100%

Based on Realistic Probability of Exposure to Specific Hazard

Significance Threshold

1 : 1,000,000

Some Jurisdictions Only

No Established Threshold in U.S. or California

No Known Established Threshold

Release Description

Residential Exposure
(lineal feet)

Commercial or Public Exposure
(lineal feet)

Aggregate Risk Annual Likelihood of Fatality

Low-Pressure Pipe Segment

Indoor Explosion
Full Bore Rupture

0

156

6.94x10-11

Indoor Explosion
1-inch Release

0

0

0

Torch Fire
Full Bore Rupture

0

500

6.82x10-8

Torch Fire

1-inch Release

0

130

9.43x10-9

Flash Fire
Full Bore Rupture

0

156

2.50x10-9

Flash Fire

1-inch Release

0

0

0

Total

N/A

N/A

8.01x10-8

1 : 12,500,000

High-Pressure Long Pipe Segment

Indoor Explosion

Full Bore Rupture

0

504

2.24x10-10

Indoor Explosion

1-inch Release

0

0

0

Torch Fire

Full Bore Rupture

0

2,854

2.96x10-7

Torch Fire

1-inch Release

0

350

1.51x10-8

Flash Fire

Full Bore Rupture

0

504

8.07x10-9

Flash Fire

1-inch Release

0

0

0

Total

Pre-Mitigation

N/A

N/A

3.19x10-7

1 : 3,130,000

High-Pressure Short Pipe Segment

Indoor Explosion

Full Bore Rupture

0

458

2.04x10-10

Indoor Explosion

1-inch Release

0

0

0

Torch Fire

Full Bore Rupture

1,910

742

4.08x10-7

Torch Fire

1-inch Release

0

480

3.39x10-8

Flash Fire

Full Bore Rupture

0

458

7.34x10-9

Flash Fire

1-inch Release

0

0

0

Total
Pre-Mitigation

N/A

N/A

4.50x10-7

1 : 2,220,000

Source: Final EIR Appendix B-1.

HAZ-2bi The following mitigation shall be incorporated into the compressor station site:

The additional measures shall also be provided:

HAZ-2bii The following mitigation shall be incorporated into the wellhead site portion of the project.

HAZ-2biii The CPUC shall conduct, or cause to be conducted in coordination with the DOT, an independent, third-party design review of the applicant's construction drawings, supporting calculations, and specifications and shall monitor and observe construction to ensure compliance with all applicable LORS. This review shall also include a review of the pipeline control and leak detection system to ensure that the system performance is consistent with the assumptions stated in Appendix B. The applicant shall make payments to the CPUC for these design review, plan check, and construction inspection services. These design review and construction observation services shall not in any way relieve the applicant of its responsibility and liability for the design, construction, operation, maintenance, and emergency response for these facilities.

HAZ-2biv A 6-inch-wide polyethylene marker tape shall be installed approximately 18 inches below the ground surface, above the center of the pipeline. The marking tape shall be brightly colored and shall be marked with an appropriate warning (e.g., Warning-High Pressure Natural Gas Pipeline).

HAZ-2bv 100% of the circumferential welds shall be radiographically inspected in accordance with American Petroleum Institute (API) Standard 1104, Welding of Pipelines and Related Facilities. This shall be approved by the DOT.

HAZ-2bvi The applicant shall submit to the CPUC an operation and maintenance (O&M) manual, prepared in accordance with 49 CFR 192.605. The O&M manual shall address internal and external maintenance inspections of the completed facility, including but not limited to details of integrity testing methods to be applied, corrosion monitoring and testing of the cathodic protection system, and leak monitoring. In addition, the O&M manual shall also include a preventative mitigation measure analysis for the use of automatic shutdown valves per DOT Part 192.935(c) requirements. The O&M manual shall also incorporate all of the APMs.

HAZ-2bvii The applicant shall conduct an in-line inspection of the pipeline if the maximum allowable operating pressure (MAOP) creates a circumferential stress greater than 40% of the specified minimum yield strength (SMYS). The in-line inspection tool shall be capable of identifying pipe anomalies caused by internal and external corrosion and other causes of metal loss. The inspections shall be performed at regular intervals, in accordance with the applicant's integrity management program.

HAZ-2bviii The following mitigation measures shall be incorporated into the project by the applicant:

HAZ 2bix An integrity management program for high consequence area (HCA) portions of the pipeline shall also be prepared in accordance with 49 CFR 192, Subpart O. The integrity management program shall be submitted to DOT and CPUC.

Rationale for Finding: The CPUC has conducted an exhaustive and thorough evaluation of potential risks addressed in this finding. In the absence of specific quantitative thresholds established for such risks, the CPUC has considered thresholds and standards applied internationally to disclose and characterize the potential risks of the project, pursuant to the requirements of CEQA. As a result, the analysis conducted represents a reasonable assessment and determination of potential risks of the project, and as such, the CPUC has concluded that the impacts are considered to be less than significant. In addition, Mitigation Measures HAZ-2bi through HAZ-2bix have been included to provide additional assurance that impacts related to hazardous materials, public health, and public safety are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.6, Hazardous Materials, Public Health and Safety, addresses the impacts to public health and safety associated with the risk of fire and explosion related to release of gas from the wellhead site, compressor station site, and pipelines segments one and two and presents mitigation measures. In addition, the Addendum to the Final EIR Section 3, Provision of Further Information on Mitigation Measures, provides clarifying information regarding the purpose and contents of the service gap analysis.

Impact HAZ-3: Potential for the Project to Emit Hazardous Emissions or Handle Acutely Hazardous Waste within 0.25 Mile of an Existing or Proposed School

Methyl mercaptan would be transported to the compressor station and wellhead sites via truck during nighttime hours. As discussed under Impact HAZ-1c in the Final EIR, the delivery of methyl mercaptan could pass within 0.15 mile of a school. Implementation of Mitigation Measures HAZ-1ci, HAZ-1cii, and HAZ-1ciii will reduce impacts from transporting methyl mercaptan to less than significant

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact HAZ-3. Specifically, the CPUC finds that Mitigation Measures HAZ-1ci, HAZ-1cii, and HAZ-1ciii, described above, will reduce impacts to transport of methyl mercaptan in the vicinity of schools to a less-than-significant level.

Rationale for Finding: The project-related impacts will be reduced to a less-than-significant level through implementation of Mitigation Measures HAZ-1ci, HAZ-1cii, and HAZ-1ciii, because the procedures established for transportation of methyl mercaptan will ensure risk and exposure to sensitive receptors.is minimized. These measures will ensure that impacts associated with transport of methyl mercaptan are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.6, Hazardous Materials, Public Health and Safety, addresses the impacts associated with transport of methyl mercaptan and presents mitigation measures.

Impact HAZ-6: Exposure to Wildland Fires

Wellhead Site, Compressor Station, and Pipeline Segments 1 and 2

As discussed in Final EIR Section D.6, Hazardous Materials, Public Health and Safety, under Impact HAZ-6, construction of the Proposed Project would be partially within grassland areas that may be prone to fire during certain times of the year. The potential for a fire could occur during welding and other activities and is considered significant. However, with implementation of Mitigation Measure HAZ-6, which requires preparation of a fire protection plan, impacts to wildland fires will be reduced to a less-than-significant level.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact HAZ-6. Specifically, the CPUC finds that Mitigation Measure HAZ-6, described below, will reduce impacts to wildland fire to a less-than-significant level.

HAZ-6 Preparation of a Fire Protection Plan. SNGS, LLC shall prepare a fire protection plan that shall be approved by the City of Sacramento Fire Department prior to construction. This plan shall include procedures to reduce the potential for creation of fires from welding and the provision of firefighting equipment and trained personnel to put out any fire that may be ignited.

Fire Protection Plan as clarified in Section 3 of the Addendum to the Final EIR (pp. 15 and 16):

Rationale for Finding: The project-related impacts will be reduced to a less-than-significant level through implementation of Mitigation Measure HAZ-6, because the procedures established in the fire protection plan will ensure that impact-avoiding construction practices are followed and maintained throughout the construction phase of the project. This measure will ensure that impacts associated with wildland fires are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.6, Hazardous Materials, Public Health and Safety, addresses the impacts associated with exposure to wildland fires and presents mitigation measures. In addition, the Addendum to the Final EIR Section 3, Provision of Further Information on Mitigation Measures, provides clarifying information regarding the purpose and contents of the fire protection plan as required by Mitigation Measure HAZ-6.

IV.2.6 Hydrology and Water Quality

Final EIR Section D.7, Hydrology and Water Quality, describes the surface and groundwater hydrology and water quality for the project area. This information was obtained from existing data and studies, including aerial photos and other relevant resource documents available from local city, county, and state water agencies. The Final EIR addresses both hydrology and water quality impacts and presents mitigation measures.

Impact H-3: Impacts to Surface Waters

As described in Final EIR Section D.7, Hydrology and Water Quality, construction of pipeline segment one would require HDD to drill under Morrison Creek in order to avoid direct impacts to the creek. An inadvertent release of drilling mud (i.e., a frac-out) during the HDD under Morrison Creek could result in sedimentation and turbidity to nearby water resources and could potentially mix with contaminated groundwater associated with groundwater remediation at Depot Park. With incorporation of APMs 8 and 16 (which require preparation of a Hazardous Materials Contingency Plan, a Health and Safety Plan, an Emergency Response Plan, and a Bore Plan, as described in Final EIR Table B-5 and the Addendum) and implementation of Mitigation Measures H-3a and H-3b, impacts to surface waters would be reduced to a less-than-significant level.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact H-3. Specifically, the CPUC finds that Mitigation Measures H-3a and H-3b, described below, will reduce impacts to surface waters to a less-than-significant level.

H-3a Creek Crossing Procedures. Creek crossings shall be conducted in a manner that does not result in a sediment-laden discharge or hazardous materials release to the waterbody. The following measures shall be implemented during horizontal boring (jack and bore) operations:

H-3b (1) Prior to construction, SNGS, LLC shall consult with the Central Valley Regional Water Quality Control Board (CVRWQCB) to determine if an individual discharge permit is required for dewatering at any of the project sites anticipated to encounter groundwater. A copy of the permit or a waiver from the RWQCB, if required, shall be provided to the CPUC prior to dewatering.

Rationale for Finding: APMs 8 and 16 (which require preparation of a Hazardous Materials Contingency Plan, a Health and Safety Plan, an Emergency Response Plan, and a Bore Plan/Frac-out Contingency Plan; see Final EIR Table B-5 and the Addendum) and Mitigation Measures H-3a and H-3b will ensure that impacts to surface waters are avoided or reduced to less than significant. Specifically, the Bore Plan/Frac-out Contingency Plan will include specific measures for monitoring frac-out and containing drilling mud. These measures will avoid or reduce project-related impacts associated with surface waters to less-than-significant levels.

Reference: Final EIR Section D.7, Hydrology and Water Quality, addresses impacts related to surface waters and presents mitigation measures.

Impact H-4: Increased Runoff from New Impervious Areas and Alteration of Existing Drainage Patterns (Wellhead Site and Compressor Station)

As described in Final EIR Section D.7, Hydrology and Water Quality, construction of the wellhead site would increase the impervious surface area by approximately 0.2 acre, resulting in an approximately 11% increase in runoff. Further, construction activities on site could change the current drainage patterns, which could contribute to off-site runoff to surrounding areas, which would result in a potentially significant impact. With implementation of Mitigation Measure H-4a, which requires preparation of a Drainage Study and Shed Map, impacts to drainage would be reduced to less than significant.

Construction of the compressor station would increase the impervious surface area and alter existing drainage patterns of the approximately 5-acre site. The impervious surface area would increase by approximately 1 acre, resulting in an approximately 22% increase in runoff. Because 1 acre of impervious surface area will be added and on-site drainage patterns would be altered due to a new building on site, there could be a potential for a significant impact to runoff and changes to the existing drainage pattern on site. With implementation of Mitigation Measures H-4a and H-4b, which require preparation of a drainage study, shed map, and erosion and sediment control plans, impacts to increased runoff and drainage would be reduced to a less-than-significant level.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact H-4. Specifically, the CPUC finds that Mitigation Measures H-4a and H-4b, described below, will reduce impacts related to impervious surfaces and runoff to a less-than-significant level.

H-4b Compliance with Grading, Erosion and Sediment Control Ordinance. SNGS, LLC shall comply with the City of Sacramento's Grading, Erosion, and Sediment Control Ordinance. This ordinance requires the applicant to prepare erosion and sediment control plans for both during and after construction of the Proposed Project and to prepare preliminary and final grading plans and plans to control urban runoff pollution from the project site during construction.

Erosion and Sediment Control Plan as clarified in Section 3 of the Addendum to the Final EIR (p. 17):

Stormwater Pollution Prevention Plan as clarified in Section 3 of the Addendum to the Final EIR (pp. 17 and 18):

Rationale for Finding: The project-related impacts will be reduced to a less-than-significant level through adoption of Mitigation Measures H-4a and H-4b, which require preparation of a drainage study, shed map, and erosion and sediment control plans. These measures will ensure that the wellhead site is properly designed and graded to avoid adverse alterations to drainage patterns, and provide for runoff containment and infiltration that mitigates for the addition of 1 acre of impervious surfaces in the project area. As a result of implementation of these measures, impacts associated with increased runoff will be avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.7, Hydrology and Water Quality, addresses the impacts to hydrology and water quality and presents mitigation measures. In addition, the Addendum to the Final EIR Section 3, Provision of Further Information on Mitigation Measures, provides clarifying information regarding the purpose and contents of the drainage study and shed map (Mitigation Measure H-4a) as well as the erosion and sediment control plan and SWPPP required in Mitigation Measure H-4b.

Impact H-5: Construction Impacts to Groundwater Disturbance and Water Quality Degradation (Wellhead Site and Pipeline Segments 1 and 2)

As described in Final EIR Section D.7, Hydrology and Water Quality, drilling of the wells on the wellhead site would use muds and other chemicals that could impact the quality of the aquifer. This would be in the initial placement of the casement into the cap rock. This impact is considered significant and can be reduced to less-than-significant levels with implementation of Mitigation Measure H-5b and APM 7. APMs applicable to hydrology and water quality are located in Final EIR Table D.7-3.

As described in Final EIR Section D.7, construction of pipeline segments one and two may create potential significant impacts to groundwater during HDD of Morrison Creek. This drilling activity may encounter groundwater that would impact the shallow aquifer, which is considered significant. With implementation of Mitigation Measures H-3b and H-5c, these impacts can be reduced to less-than-significant levels through dewatering of the trenches and proper disposal of the water.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact H-5. Specifically, the CPUC finds that Mitigation Measures H-5a through H-5c, described below, as well has Mitigation Measure H-3b above, will reduce construction impacts associated with groundwater disturbance and water quality degradation to a less-than-significant level.

H-5a Compliance with Regulations. SNGS, LLC and its contractors shall comply with all local, state, and federal regulations pertaining to stormwater and non-stormwater discharges.

H-5b Use of Non-Toxic Drilling Muds. SNGS, LLC and its contractors shall use non-toxic drilling muds during the drilling of the wells within the areas above the shale cap. Any contaminated drilling mud shall be disposed of at an approved facility.

H-5c Groundwater Procedures. If groundwater is encountered during the pipeline trenching or HDD, the site shall be dewatered prior to continuing construction. An NPDES permit shall be obtained for proper disposal of water. Treatment may be required prior to discharge.

Rationale for Finding: Mitigation Measures H-3b and H-5a through H-5c, in conjunction with APM 7 (APM described in Final EIR Table B-5), will reduce impacts related to groundwater disturbance and water quality to less than significant by providing dewatering of the trenches and proper containment and disposal of the water, and also by ensuring that no toxic substances are used on the trenchless drilling processes. These measures will ensure that impacts associated with groundwater disturbance and water quality during construction are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.7, Hydrology and Water Quality, addresses the impacts to hydrology and water quality and presents mitigation measures.

IV.2.7 Land Use, Agriculture and Recreation

Final EIR Section D.8, Land Use, Agriculture, and Recreation, describes existing land uses, land use plans and policies, and impacts to those land use plans and policies as well as to surrounding land uses. Land uses identified in the analysis include those that are located immediately adjacent to the project, that will be affected by construction and operation activities of the Proposed Project. Existing land use information was based on a review of aerial photographs, site visits, and a review of the SNGS, LLC's PEA and SNGS, LLC's PEA Addendum. Planned and proposed land use information was obtained from general and community plans for the City of Sacramento and the County of Sacramento. Other relevant land use plans, including applicable master plans and habitat conservation plans, were also reviewed. In addition, information was gathered through personal communication with the city and county planning staff as needed.

Impact LU-3: Disruption of an Established Land Use

As described in Final EIR Section D.8, Land Use, Agriculture, and Recreation Resources, construction activities associated with the wellhead site, compressor station site, and pipeline segments one and two would have the potential to disrupt land uses adjacent to each respective project site for short periods. Construction activities for the wellhead site and installation of pipeline segment one would temporarily affect Power Inn Road and would temporarily and indirectly impact the residences situated west of Power Inn Road and workers in surrounding industrial facilities to the north, east, and west. Interruptions to traffic on Power Inn Road may occur during pipeline installation, resulting in disruptions to established land uses due to lane closures and interference with local transit services. The pipeline segment one would be constructed within an existing utility easement, so no direct road work would be required. However, hauling and delivery of oversized loads may occasionally require temporary lane closure along the proposed pipeline alignment route to minimize potential impacts with regular traffic. Construction of pipeline segment two would tie in at Fruitridge Road. Traffic impacts could occur along Fruitridge Road, where pipeline segment two would connect to the existing SMUD pipeline. Construction activities would be required within the roadway, resulting in interruptions to traffic on Fruitridge Road from lane closures and potential interference with local transit services. To reduce construction-related impacts at the wellhead site, compressor station site, and pipeline segments one and two to less than significant, Mitigation Measures LU-3a (construction notification) and LU-3b (public liaison and information hotline) are provided. In addition, APMs include preparation of a traffic control plan along with Mitigation Measures T-1a and T-1b, described in Final EIR Section D.12, Transportation and Traffic, which would further reduce impacts to established land uses resulting from construction. A description of APM 11 is provided in Final EIR Section B, Description of Proposed Project, Table B-5, Applicant Proposed Measures.

Indirect impacts to residences west of the wellhead site and pipeline segment one include temporary exposure to dust that could settle on parked cars, window ledges, and other exposed horizontal surfaces from trenching and backfilling activities. These impacts would also be discernable by surrounding workers on adjacent industrial lands to the north, east, and south. Temporarily, noise impacts could also be audible surrounding the project site. Equipment such as concrete saws, pavement-breaking machines, jackhammers, backhoes, and other powered construction equipment that would generate noise could disturb nearby residents and employees. Depending on weather conditions, odor emissions from diesel construction equipment might be discernible by the nearest individuals. Although the noise, dust, and diesel odors generated during construction would constitute a minor nuisance to adjacent residences, the construction would be of short duration. SNGS, LLC would adhere to City ordinances governing noise generation during construction activities and would adhere to all regulations concerning fugitive dust, such as maintaining "wet-down" conditions during construction in order to reduce particulate dust emissions. Additional measures are proposed; however, in order to reduce construction-related disturbances to surrounding land uses to less than significant. Mitigation Measures LU-3a (construction notification) and LU-3b (public liaison and information hotline) address potential impacts to residents and employees surrounding the project site.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact LU-3. Specifically, the CPUC finds that Mitigation Measures LU-3a (construction notification) and LU-3b (public liaison and information hotline), described below, will reduce impacts to land use to a less-than-significant level.

LU-3a Provide Construction Notification and Minimize Construction Disturbance. SNGS, LLC or its construction contractor shall provide advance notice, between 2 and 4 weeks prior to construction, by mail to all residents or property owners within 300 feet of the Proposed Project. The announcement shall state specifically where and when construction will occur in the area. Notices shall provide tips on reducing noise intrusion, for example, by closing windows facing the planned construction. SNGS, LLC shall also publish a notice of impending construction in local newspapers, stating when and where construction will occur. Prior to construction, copies of all notices shall be submitted to the CPUC.

LU-3b Provide Public Liaison Person and Information Hotline. SNGS, LLC shall identify and provide a public liaison person before and during construction to respond to concerns of neighboring residents about noise, dust, and other construction disturbance. Procedures for reaching the public liaison officer via telephone or in person shall be included in notices distributed to the public in accordance with Mitigation Measure LU-3a. SNGS, LLC shall also establish a telephone number for receiving questions or complaints during construction and shall develop procedures for responding to callers. Procedures shall be submitted to the CPUC for review and approval prior to construction and bi-monthly.

Rationale for Finding: Traffic disruptions that may occur during construction will be avoided and minimized through proper signage and directional devices, as well as restrictions on lane closures, which would be outlined in a traffic control plan identified in Mitigation Measures T-1a and T-1b. The traffic control plan will minimize land use conflicts associated with traffic disruptions. In addition, Mitigation Measures LU-3a and LU-3b provide a means for notification and communication of any potential indirect effects associated with construction that may result in land use conflicts, thereby reducing such conflicts by facilitating any necessary corrective action. These measures will ensure that impacts associated with land use are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.8, Land Use, Agriculture, and Recreation Resources, addresses construction-related impacts to established land uses and presents mitigation measures.

IV.2.8 Public Services and Utilities

Public service and utilities were addressed in the EIR based on analysis of existing service and utilities systems and determining the need for additional public services and utilities as a result of the Proposed Project. Existing information was based on a review of the SNGS, LLC's PEA. In addition, service and utility information was obtained from general plans for the City of Sacramento and the County of Sacramento as well as Internet research and written and personnel communications with service agencies as needed.

Impact U-1: Utility System Disruptions

As described in Final EIR Section D.11, Public Services and Utilities, utilities such as water, wastewater, and natural gas pipelines, petroleum product pipelines, and electric and phone/fiber-optic cable lines may be buried in the vicinity of the Proposed Project components or beneath roads and sidewalks crossed by the proposed natural gas transmission lines. Construction of pipeline segments one and two, as described in Final EIR Section B.2.2, would require construction in an existing utility easement and under the railroad ROW, respectively. Overhead electrical lines run along the west side of the wellhead site within the easement and partially along the railroad ROW. Short-term electrical service interruptions could occur. While electric service disruptions would be temporary in nature, these disruptions could impact nearby businesses and hinder activities in the surrounding area. In addition, utilities such as underground water and sewer lines are generally found within roadways. Road work would not be necessary within the City or County of Sacramento except along Fruitridge Road, where the proposed pipelines would connect to existing SMUD pipeline. Therefore, there would be potential for service interruptions of water and sewer utilities during construction. Though temporary in nature, the potential for disruptions to existing utilities is considered a significant impact. Mitigation Measures U-1a through U-1d would mitigate impacts associated with utility disruptions to less-than-significant levels.

As described in Final EIR Section D.11, Public Services and Utilities, installation of underground pipeline segments one and two involves construction activities in close proximity to existing utilities. Consequently, there is potential for the proposed pipeline segments to increase cathodic-induced corrosion of steel pipelines, which could lead to long-term accidental system disruption of such pipelines. This potential maintenance problem with existing and future utilities is considered a significant impact. Mitigation Measure U-1e provides mitigation to reduce indirect impacts from accelerated corrosion to a less-than-significant level.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact U-1. Specifically, the CPUC finds that Mitigation Measures U-1a through U-1e, described below, will reduce impacts to utilities service disruptions to a less-than-significant level.

U-1a Notice of Service Disruption. Prior to construction during which a utility service interruption is known to be unavoidable, SNGS, LLC shall notify members of the public affected by the planned outage of the impending interruption. Copies of the notices and dates shall be provided to the CPUC at the time the notices are distributed to the public and to the City of Sacramento Fire Department.

U-1b Notification to Underground Service Alert. Underground Service Alert shall be notified a minimum of 48 hours in advance of earth-disturbing activities in order to identify buried utilities. After probing the corridor for existing utilities, exact placement of the connecting pipeline(s) shall be determined so that placement of new structures will not conflict with other co-located utilities.

U-1c Coordination with Affected Jurisdictions. During project design, SNGS, LLC shall coordinate with each jurisdiction affected by the underground pipeline segments to determine the exact location for placement of the pipelines to avoid conflicts with planned and proposed utility projects and any relocation of existing utilities occurring within the direct vicinity of the project.

Final Design Plans as clarified in Section 3 of the Addendum to the Final EIR (pp. 19 and 20):

U-1d Protection of Underground Utilities. Prior to construction of the underground pipelines, SNGS, LLC shall submit to the CPUC written documentation demonstrating coordination with the appropriate jurisdictions, including the following:

U-1e Utilities Protection Against Corrosion. SNGS, LLC shall evaluate the potential for the underground pipelines to increase corrosion on existing pipelines. If this potential is determined to exist, SNGS, LLC shall be responsible for installation of the required cathodic protection systems that would reduce corrosion potential. A letter documenting these consultations and their results, including concurrence by the affected jurisdiction(s) and other companies, shall be provided to the CPUC prior to the start of construction.

Rationale for Finding: The proposed Mitigation Measure U-1a will minimize effects related to service disruption by providing adequate notification and planning by the agencies responsible for service delivery, and by the public. Mitigation Measures U-1b through U-1e ensure that proper investigation of existing facilities and planning for the new facilities will avoid and minimize damage to those existing facilities. These measures will ensure that impacts associated with utility disruptions are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.11, Public Services and Utilities, addresses the impacts to utility systems and presents mitigation measures. The Addendum to the Final EIR provides additional information regarding the purpose and contents of final design plans for pipeline design as required by Mitigation Measure U-1c.

Impact U-2: Public Service System Disruption

As described in Final EIR Section D.11, Public Services and Utilities, implementation of the Proposed Project could result in significant impacts to fire and police services both during the construction phase and during any potential emergency event dealing with pipeline incidents or with any gas leak. Operation of the Proposed Project would result in the storage of natural gas underground along with the wellhead, compressor station, and required connecting pipelines. Consequently, as further discussed in Final EIR Section D.6, Hazardous Materials, Public Health and Safety, operation of the project would result in increased risk of fire and/or explosion, resulting in an increased demand for local emergency services, including fire protection. Gas well firefighting strategies and tactics require infrastructure, equipment, and training that the Sacramento Fire Department
(SFD) does not currently provide. In addition, SFD does not have adequate training for the types of emergencies that could occur at the facility, nor do they have a way to maintain any such training within the department at this time. This could require additional services and personnel from the SFD in terms of inspection of facilities during construction and operation. This is considered a significant impact but would be mitigated to less than significant with implementation of Mitigation Measure U-2.

Further, activities associated with the installation of pipeline segments one and two could require lane closures and could impact traffic from the presence of construction vehicles and equipment. Consequently, the possibility exists for interference with emergency service providers (i.e., ambulance, fire, paramedic, and police vehicles). This is considered a significant impact and would be mitigated to a level that is less than significant with implementation of Mitigation Measure T-6 (see Final EIR Section D.12.5). Mitigation Measure T-6 includes requirements for the applicant to coordinate in advance of construction with emergency service providers and to have provisions ready at all times to accommodate emergency services, such as providing short detours when necessary.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact U-2. Specifically, the CPUC finds that Mitigation Measure U-2, described below, will reduce impacts to public service disruptions to a less-than-significant level.

Mitigation Measure for Impact U-2: Public Service System Disruption

U-2 SNGS, LLC shall coordinate with the City of Sacramento and reimburse the city for their fair share of additional equipment and personnel as determined by the city's needs study. The department is contracting with technical experts to evaluate the capabilities of the department and surrounding public and private infrastructure for the purpose of identifying areas requiring mitigation. Once identified, mitigating action costs, both one-time and recurring, are to be borne by SNGS, LLC. Additionally, SNGS, LLC's Emergency Response Plan shall have provisions to reimburse the City of Sacramento for any costs of responding to an emergency, as well as damage caused by a project-related incident. The Emergency Response Plan shall be submitted to the SFD for review and approval prior to construction.

Emergency Response Plan/Emergency Action Plan as clarified in Section 3 of the Addendum to the Final EIR (p. 19):

Rationale for Finding: Mitigation Measure U-2 will minimize effects related to service disruption by providing necessary funding to the agencies responsible for service delivery to account for additional planning, staffing, and equipment needed to compensate for potential service disruptions. Mitigation Measure T-6 also includes requirements for the applicant to coordinate in advance of construction with emergency service providers and to have provisions ready at all times to accommodate emergency services, such as providing short detours when necessary. This measure avoids potential construction-related traffic conflicts with emergency service delivery vehicles. These measures will ensure that impacts associated with public service disruptions are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.11, Public Services and Utilities, addresses the impacts to utility systems and presents mitigation measures.

Impact U-3: Project-Required Utility and Public Service Demands

As described in Final EIR Section D.11, Public Services and Utilities, dewatering activities requiring discharge into a sanitary sewer system could occur in highly urbanized areas if other dewatering processes do not meet local water quality requirements. Mitigation Measure U-3 would ensure coordination with local sewer system operators and reduce impacts to a less-than-significant level.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact U-3. Specifically, the CPUC finds that Mitigation Measure U-3, described below, will reduce impacts to the wastewater system to a less-than-significant level.

U-3 Notice and Approval of Water Discharge. Prior to discharging any water into a local wastewater pipeline or facility, SNGS, LLC shall contact the City of Sacramento and Sacramento Regional County Sanitation District for approval. All discharges shall be in accordance with all local, state, and federal regulations pertaining to wastewater disposal.

Rationale for Finding: The project would not result in significant impacts related to increases in demand for public utilities or services, because demand increases are limited to construction activities, which are short term in nature, and do not place substantial demand on services or utilities. Nevertheless, Mitigation Measure U-3 provides assurances that the applicant will properly coordinate with utility and service providers, and will comply with applicable regulations related to discharges to the sanitary sewer. This measure will ensure that impacts associated with public services and utility demands are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.11, Public Services and Utilities, addresses the impacts to public service disruptions and presents mitigation measures. In addition, the Addendum to the Final EIR Section 3, Provision of Further Information on Mitigation Measures, provides clarifying information regarding the purpose and contents of project final design plans (Mitigation Measure U-1c) as well as the Emergency Response Plan/Emergency Action Plan as discussed in Mitigation Measure U-2.

IV.2.9 Transportation and Traffic

Final EIR Section D.12, Transportation and Traffic, evaluates the potential impacts of the Proposed Project to surrounding roadways, transit and rail service, airports, and bicycle facilities. The study area for the transportation and traffic analysis includes roadways directly affected by the Proposed Project and alternatives. The information is based on the analysis of existing information and studies, including general and master plans for the City of Sacramento and the County of Sacramento; Internet research for roadway, transit, rail, airport, and bus route information; and personnel communications with agency staff.

Impact T-1: Road and Lane Closure

As described in Final EIR Section D.12, Transportation and Traffic, hauling and delivery of oversized loads may occasionally require temporary lane closure along the proposed pipeline segment one alignment route to minimize potential impacts with regular traffic. Construction of pipeline segment two and the proposed tie-in with SMUD Line 700 beneath Fruitridge Road would likely require lane closure(s) on eastbound Fruitridge Road. Temporary lane closures and associated safety concerns, increased traffic levels, and constrained circulation associated with temporary road closures is considered a significant impact, and would be mitigated to less than significant with implementation of Mitigation Measures T-1a and T-1b.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact T-1. Specifically, the CPUC finds that Mitigation Measures T-1a and T1-b, described below, will reduce impacts to lane closures to a less-than-significant level.

T-1a Prepare Traffic Control Plan. Prior to the start of construction, SNGS, LLC shall submit a Traffic Control Plan (TCP) to the City of Sacramento and the SFD. The city has jurisdiction over public roads that will be affected by underground construction activities as part of the required traffic encroachment permits. The public roadways that may be affected by construction activities are Power Inn Road, Junipero Street, Caroline Drive, and Fruitridge Road. The TCP shall define the locations of all roads that will need to be temporarily closed due to construction activities, including hauling of oversized loads by trucks, and trenching activities (pursuant to Sacramento Municipal Code (SMC) Section 12.16.020, temporary street closures require a permit from the city manager (Sacramento, City of 2000)). Input and approval from the City of Sacramento and SFD shall be obtained and copies of approval letters from each jurisdiction must be provided to the CPUC prior to the start of construction within the jurisdiction. The TCP shall define the use of flag persons, warning signs, lights, barricades, and cones according to standard guidelines outlined in the Caltrans Construction Manual (2007), the Standard Specifications for Public Works Construction (Public Works Standards 2006), and the Work Area Traffic Control Handbook (WATCH) (American Public Works Association 2006). Documentation of the approval of these plans and the issuance of encroachment permits (if applicable) shall be provided to the CPUC prior to the start of construction activities that require temporary closure of a public roadway.

Traffic Control Plan as clarified in Section 3 of the Addendum to the Final EIR (p. 20):

T-1b Restrict Lane Closures. SNGS, LLC shall restrict all necessary lane closures or obstructions on major roadways associated with underground construction activities to off-peak periods in urbanized areas to mitigate traffic congestion and delays. Lane closures in urbanized areas must not occur between 6:00 a.m. and 9:30 a.m. and between 3:30 p.m. and 6:30 p.m., or as directed in writing by the affected public agencies. Where feasible, nighttime construction with steel plates covering trenches during the day will be implemented, subject to the approval of agencies having jurisdiction over such measures. All trenching activities within the City of Sacramento shall comply with SMC Section 12.12.070 requirements that, "no trench shall be opened in any street for the purpose of laying pipes, conduits, or ducts more than four hundred (400) feet in advance of the pipe, conduit, or ducts being placed in the trench, except when the prior written consent of the director has been obtained" (Sacramento, City of 2000).

Rationale for Finding: Traffic disruptions that may occur during construction will be avoided and minimized through proper signage and directional devices, as well as restrictions on lane closures, which would be outlined in a traffic control plan identified in Mitigation Measures T-1a and T1-b. The traffic control plan will minimize land use conflicts associated with traffic disruptions. These measures will ensure that impacts associated with transportation systems are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.12, Transportation and Traffic, addresses the impacts to road and land closures and presents mitigation measures. In addition, the Addendum to the Final EIR Section 3, Provision of Further Information on Mitigation Measures, provides clarifying information regarding the purpose and contents of the Traffic Control Plan (Mitigation Measure T-1a).

Impact T-2: Construction-Generated Traffic

As described in Final EIR Section D.12, Transportation and Traffic, during construction activities, between 150 and 200 total employees would be required along pipeline segments one and two, at the wellhead site, and at the compressor site. The anticipated construction-related traffic would create a short-term and limited impact on traffic volumes and may change traffic patterns such as to affect the level of service (LOS) or volume-to-capacity ratio on the study area roadways. Mitigation Measure T-2 and APM 11, which require SNGS, LLC to prepare a traffic control plan, will ensure that traffic congestion and delays due to project-related construction traffic are mitigated to a level that is less than significant.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact T-2. Specifically, the CPUC finds that Mitigation Measure T-2, described below, will reduce impacts to construction-generated traffic to a less-than-significant level.

T-2 Traffic Control Plan to Reduce Construction-Related Traffic. The traffic control plan described in Mitigation Measure T-1a shall also provide measures to ensure that traffic congestion and delay resulting from project construction are minimized by incorporating features such as:

Rationale for Finding: Traffic disruptions that may result from the addition of construction traffic on local roadways will be avoided and minimized through proper scheduling and sequencing of construction traffic, which would be outlined in a traffic control plan, as identified in Mitigation Measure T-2. This measure, in conjunction with APM 11 (as described in Final EIR Table B-5), will ensure that impacts associated with construction traffic are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.12, Transportation and Traffic, addresses the impacts of construction-generated traffic and presents mitigation measures.

Impact T-3: Physical Impacts to Roads and Sidewalks

As described in Final EIR Section D.12, Transportation and Traffic, project construction activities would cause physical impacts to area roads and sidewalks. Activities such as grading of roadway ROWs to provide a level work area and trenching activities to install the proposed pipeline sections would cause temporary damage. In addition, heavy construction vehicle use could cause damage along the pipeline route and at other project component sites. Mitigation Measure T-3 will ensure that physical impacts to roads and sidewalks are mitigated to less than significant.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact T-3. Specifically, the CPUC finds that Mitigation Measure T-3, described below, will reduce impacts to roads and sidewalks to a less-than-significant level.

T-3 Repair Damaged Roadways and Sidewalks. If damage to roads, sidewalks, and/or medians occurs, SNGS, LLC shall coordinate repairs with the affected public agencies to ensure that any damage is adequately repaired. Roads disturbed by construction activities or construction vehicles shall be properly restored to ensure long-term protection of road surfaces. Care shall be taken to prevent damage to roadside drainage structures. Roadside drainage structures and road drainage features (e.g., rolling dips) shall be protected by regrading and reconstructing roads to drain properly. Said measures shall be incorporated in an access agreement/easement with the applicable governing agency prior to construction.

Rationale for Finding: Mitigation Measure T-3 provides for repair of any damage to local roadway facilities that may occur as a result of construction, thereby compensating for any adverse effects and ensuring that impacts associated with construction activity on transportation systems are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.12, Transportation and Traffic, addresses physical impacts to roads and sidewalks and presents mitigation measures.

Impact T-5: Interference with Pedestrian/Bicycle Circulation and Safety

As shown in Final EIR Table D.12-4 (Section D.12, Transportation and Traffic), pedestrian and bicycle circulation could be affected along Power Inn Road and Fruitridge Road by construction activities if pedestrians and bicyclists were unable to pass through the construction zones or if established pedestrian and bike routes are blocked. Additionally, since there may be disruption to bicycle routes or paths, sidewalks and shoulders, pedestrians and bicyclists may enter the affected streets and highways and risk a vehicular-related accident. Open trenches along the pipeline corridor could present safety issues to pedestrians and bicyclists. This is considered a significant impact and would be mitigated to a less-than-significant level with implementation of Mitigation Measure T-5.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact T-5. Specifically, the CPUC finds that Mitigation Measure T-5, described below, will reduce impacts to interference with pedestrian/bicycle circulation and safety to a less-than-significant level.

T-5 Pedestrian and Bicycle Safety. Where construction would result in temporary closures of sidewalks and other pedestrian facilities, SNGS, LLC shall provide temporary pedestrian access through alternative routes avoiding the construction areas. Affected pedestrian facilities and the alternative facilities or detours to be provided shall be identified in the traffic control plan. Where construction activity will result in bike route or bike path closures, appropriate detours and signs shall be provided. Where construction will affect bicycle travel on streets without bicycle facilities or in areas where pedestrians could enter, requirements for barricades to prevent entry or for plates to cover trenches will be used in accordance with the permit requirements of the local jurisdiction.

Rationale for Finding: Mitigation Measure T-5 will reduce conflicts and interference with pedestrian and bicycle traffic by coordinating alternate routes, and providing signage and detours that will safely convey traffic around construction areas. This measure will ensure that impacts associated with pedestrian and bicycle traffic disruption are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.12, Transportation and Traffic, addresses the impacts to pedestrian and bicycle safety and presents mitigation measures.

Impact T-6: Interference with Emergency Response

As described in Final EIR Section D.12, Transportation and Traffic, pipeline construction activities (as well as construction activities at the wellhead site and compressor station) could potentially interfere with emergency response by ambulance, fire, paramedic, and police vehicles due to brief roadway closures (discussed previously in Impact T-1). This is considered a significant impact, and would be mitigated to a less-than-significant level with implementation of Mitigation Measure T-6.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact T-6. Specifically, the CPUC finds that Mitigation Measure T-6, described below, will reduce impacts to emergency response to a less-than-significant level.

T-6 Ensure Emergency Response Access. SNGS, LLC shall coordinate in advance with local jurisdictions to avoid restricting movements of emergency vehicles. SNGS, LLC shall request that police departments, fire departments, ambulance services, and paramedic services be notified in advance by each jurisdiction of the proposed location, nature, timing, and duration of the construction activities and advised of any access restriction that could negatively affect their emergency response times. If necessary, SNGS, LLC shall assist local jurisdictions to ensure that such emergency services are informed of the previously mentioned kinds of logistics related to construction activities. If project construction would block access to nearby property, provisions shall be ready at these locations at all times to accommodate emergency vehicles, such as plating over excavations, short detours, and alternate routes, in conjunction with local agencies. The traffic control plan (Mitigation Measure T-1a) will include details regarding coordination of emergency services and will identify procedures to ensure effectiveness of emergency services along project area roadways.

Rationale for Finding: Mitigation Measure T-6 includes requirements for the applicant to coordinate in advance of construction with emergency service providers and to have provisions ready at all times to accommodate emergency services, such as providing short detours when necessary. This measure avoids potential construction-related traffic conflicts with emergency service delivery vehicles, and thereby provides assurance that impacts associated with emergency response access are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.12, Transportation and Traffic, addresses the impacts to interference with emergency response and presents mitigation measures.

Impact T-9: Restricted Access to Properties

As described in Final EIR Section D.12, Transportation and Traffic, access to driveways could temporarily be blocked within the construction zone, thereby affecting access and parking for the adjacent residences, institutions, businesses, and other uses. Impacts associated with restricted access to properties during pipeline construction are considered significant and will be mitigated to a less-than-significant level with implementation of Mitigation Measures T-1a, T-9a, and T-9b.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact T-9. Specifically, the CPUC finds that Mitigation Measures T-1a (described previously) and T-9a and T-9b, described below, will reduce impacts to access restrictions during construction to a less-than-significant level.

T-9a Notification of Potential Obstructions. SNGS, LLC shall notify affected parties of potential obstructions and will make provisions for alternative access. Alternative access provisions will be provided by SNGS, LLC where feasible, with guide signs to inform the affected parties and the public. SNGS, LLC shall give written notification to all landowners along the ROW of the construction schedule and shall explain the exact location and duration of construction activities proposed for the wellhead site, compressor station, and pipeline alignment route and construction activities within each street (i.e., which lanes will be temporarily closed, at what times of the day, and on what dates). SNGS, LLC shall identify locations of any potential access obstruction and shall make alternative access provisions. Written notification shall include telephone numbers for SNGS, LLC's public relations liaison and shall encourage affected parties to voice their concerns with SNGS, LLC prior to the start of construction activities so that individual problems and solutions may be identified. Alternative access provisions shall include SNGS, LLC-provided signage and if necessary, alternative parking as provided and approved by local agencies, as well as open trenches to be covered during periods of inactivity with steel plates to provide maximum weight allowance for anticipated traffic.

T-9b Scheduling and Notification. SNGS, LLC shall schedule construction so that at least one access driveway of affected businesses is left unblocked during all business hours or hours of use. This scheduling shall be provided by SNGS, LLC to the affected tenants so they can inform employees.

Rationale for Finding: Traffic disruptions that may result from conflicts with local access will be avoided and minimized through proper notification, scheduling, and sequencing of construction traffic, which would be specified in a traffic control plan, and as outlined in Mitigation Measures T-9a and T-9b. Alternative access would also be provided so as to avoid blockage of driveways and access. These measures will ensure that impacts associated with public access are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.12, Transportation and Traffic, addresses the impacts to access restrictions and presents mitigation measures.

IV.2.10 Visual Resources

Final EIR Section D.13, Visual Resources, addresses the visual resources of the project area and the potential visual effects of the Proposed Project and alternatives. The project area for visual resources encompasses the on-site landscapes directly affected by the Proposed Project's components and the surrounding off-site areas that would be within view of the Proposed Project actions. The visual analysis is based on a review of relevant government plans and policies regarding visual resources, independent site evaluations, and a review of SNGS, LLC's PEA, PEA Addendum, and deficiency responses.

Impact V-1: Short-Term Visual Impacts

As described in Final EIR Section D.13, Visual Resources, nighttime lighting at the wellhead site would occur on a daily basis during wellhead drilling. The nighttime light and glare associated with this construction activity is considered a temporary significant impact; however, with implementation of Mitigation Measure V-1, this impact would be reduced to a less-than-significant level.

Findings. The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant effects on the environment from Impact V-1. Specifically, the CPUC finds that Mitigation Measure V-1, described below, will reduce impacts due to nighttime lighting at the wellhead site to a less-than-significant level.

V-1 Lighting Direction. Site lighting shall be hooded and directed toward the interior of the wellhead, compressor station, and HDD drilling locations

Rationale for Finding: Visual effects from construction equipment would be less than significant due to the short-term nature and limited scope of construction activities. Potentially significant night lighting of construction areas will be avoided through control of the lateral spread of construction lighting, as specified in Mitigation Measure V-1. This measure will ensure that associated with construction lighting impacts are avoided or reduced to less-than-significant levels.

Reference: Final EIR Section D.13, Visual Resources, addresses the impacts to nighttime lighting and presents mitigation measures.

IV.3 Significant Environmental Impacts That Cannot be Avoided or Reduced to a Less-Than-Significant Level

Based on the resource area assessment in the Final EIR, the Commission has determined that the project will have significant impacts in the issue areas discussed below and that these impacts cannot be reduced to less than significant. These findings are based on the discussion of impacts that are described in detail in Section D of the Final EIR. For each significant and unavoidable impact, the Commission has made a finding pursuant to PRC Section 21081. An explanation for the finding is also presented below.

IV.3.1 Hazardous Materials, Public Health and Safety

Final EIR Section D.6.3, Impact HAZ-2 describes the potential impacts of release of natural gas from the Proposed Project. Natural gas may be released from the proposed pipelines due to structural failure, damage to the pipeline, operator error, or vandalism (Impact HAZ-2b, discussed in Section IV.2.5 of the CEQA Finding of Fact). In addition, there is a concern that natural gas may migrate from the reservoir through existing wells or cracks in the cap rock and impact residents living above the gas field (Impact HAZ-2a, discussed below).

Impact HAZ-2a: Potential Impact from Gas Leaking From the Gas Reservoir after Repressurization of the Gas Field for Gas Storage

As described in Final EIR Section D.6.3, concerns raised during public scoping for the project include the potential for gas to migrate to the surface from the repressurized reservoir. This gas could then enter structures or other confined spaces to create concentrated gas in structures that could become a health hazard or explosive. There would also be a concern that gas could concentrate within confined spaces such as manholes or utility bunkers and potentially asphyxiate a person entering the space. Fugitive gas migrating near the surface could accumulate under impervious or semipervious pavement or concrete slabs underlying structures, streets, or parking lots and could migrate laterally within underlying porous materials such as gravel/sand layers beneath slabs, gravel/sand road base, or within the gravel/sand material used to provide bedding for pipelines in trenches.

As described in Final EIR Section D.6.3, there is a remote potential that gas could migrate to the surface from around or through the cap rock, either through existing fractures or faults or other discontinuities in the cap rock. There is sufficient information to conclude that the leakage of stored gas into the overlying groundwater aquifer and perhaps to the ground surface is unlikely to occur. There is insufficient information to conclude categorically that stored gas migration to the overlying groundwater aquifer and/or ground surface would not occur. Therefore, it is assumed that there is a low potential that gas could migrate to the overlying groundwater aquifer and/or to the ground surface. Gas migration could result in groundwater impacts, health effects, and potentially flash fires or explosions. Therefore, this impact is considered significant. Despite implementation of APM 5 and Mitigation Measures HAZ-2ai and HAZ-2aii, which would reduce this already low potential, this impact would remain significant and unavoidable for the following reasons:

Finding: The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant impacts on the environment from Impact HAZ-2a to the extent feasible. Specifically, the CPUC finds that even with the implementation of Mitigation Measures HAZ-2ai and HAZ-2aii, described below, the potential for fire and explosion associated with a release of gas cannot be reduced to less-than-significant levels and will remain a significant and unavoidable impact.

HAZ-2ai SNGS, LLC shall conduct laboratory tests of cores and may also conduct in situ (in place) bore-hole tests of the cap rock structure. These tests shall include determination of the cap rock strength properties to facilitate assessment of the cap rock integrity relative to the projected pressures exerted by the stored natural gas. These tests will also provide data that allows assessment of the effects of the cycling of gas pressure during operation of the gas storage facility. These tests shall determine the properties of the cap rock itself, including permeability and strength of the cap rock within the range of the projected gas storage pressures. These tests shall be monitored and approved by the DOGGR who will review tests relative to the proposed storage pressure prior to allowing the storage of natural gas. Results of the studies shall also be made available to Sacramento County Department of Environmental Management and the RWQCB.

HAZ-2aii SNGS, LLC shall develop a gas detection plan at key points within the area over the Florin Gas Field. The plan will include the installation of monitoring wells for detection of anomalous pressure changes in the deep groundwater aquifer immediately above the cap rock structure. These wells shall be equipped with instrumentation to monitor and record (with electronic data loggers) aquifer pressure, temperature, and other parameters as needed. The number, location, depth, screened interval, and instrumentation of the deep aquifer monitor wells will be selected jointly by qualified petroleum industry and groundwater experts. The intent of the deep aquifer wells is to allow detection of the anomalous pressure, which is a way to tell if there is leakage of stored gas into zones above the cap rock from the underlying Florin Gas Field. One monitoring station shall be included at the Florin Portable Water Storage Reservoir.

Gas Detection Plan as clarified in Section 3 of the Addendum to the Final EIR (p. 14):

Reviewing and Approving Agencies: CPUC and City of Sacramento.

Rationale for Finding: Even with the implementation of Mitigation Measures HAZ-2ai and HAZ-2aii as well as APM 5 (as described in Final EIR Table B-5) , the potential for release of gas from unknown flows in the reservoir cap cannot be assured, even though this potential is very low. Due to the consequences of such a release in a highly populated area such as the project site, the impact remains significant and unavoidable.

Reference: Final EIR Section D.6, Hazardous Materials, Public Health and Safety, provides a complete assessment of hazardous materials and public health and safety impacts of the project and presents mitigation measures. In addition, the Addendum to the Final EIR Section 3, Provision of Further Information on Mitigation Measures, provides clarifying information regarding the purpose and contents of the gas detection plan (Mitigation Measure HAZ-2aii).

IV.3.2 Hydrology and Water Quality

Final EIR Section D.7.3, Impact H-8 describes the potential impacts due to possible contamination of the groundwater aquifer through migration of natural gas stored in the underground reservoir. Should contamination of the aquifer occur, it could be substantial requiring a prolonged period of remediation, thereby impacting the water quality of a major potable aquifer.

Impact H-8: Operation and Maintenance Impacts to Surface Water and Groundwater Quality

As described in Final EIR Section D.7, Hydrology and Water Quality, implementation of the Proposed Project will present the potential of contamination of the groundwater aquifer through the storage of natural gas. Of concern would be the contamination of the aquifer through migration of gas into the aquifer. There is sufficient evidence to conclude that the leakage of gas into the overlying groundwater aquifer is unlikely to occur. However, there is insufficient information to conclude categorically that gas migration to the overlying aquifer would not occur. Therefore, it is assumed that there is a low potential that gas could migrate into the aquifer; however, should this migration occur, the gas could contaminate the aquifer. This contamination could be substantial requiring a prolonged period of remediation and impacting the water quality of a major potable aquifer. This is considered a significant and unavoidable impact even with the implementation of Mitigation Measures H-8a, H-8b, and HAZ-2ai, due to the consequence if it were to occur and the difficulty of remediating the contamination.

Finding: The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant impacts on the environment from Impact H-8 to the extent feasible. Specifically, the CPUC finds that even with the implementation of Mitigation Measures H-8a and H-8b, described below, and HAZ-2ai described under Section IV.3.1, above, the potential for contamination of the aquifer associated with a release of gas cannot be reduced to less-than-significant levels and will remain a significant and unavoidable impact.

H-8a Spill Prevention, Control, and Countermeasure Plan. SNGS, LLC shall prepare a Spill Prevention, Control, and Countermeasure (SPCC) Plan in accordance with 40 CFR 112. A copy of the plan shall be submitted to the CPUC prior to project start-up. This plan shall include methods for erosion control, control and use of hazardous materials, location of fueling, and other protection methods.

Spill Prevention, Control, and Countermeasure Plan as clarified in Section 3 of the Addendum to the Final EIR (p. 18):

H-8b Groundwater Monitoring Wells. SNGS, LLC shall develop groundwater monitoring wells at the wellhead site. These should be in place and a groundwater quality baseline developed prior to any drilling activities. Groundwater quality shall be monitored in both the shallow and deeper aquifers. In the event that hydrocarbon levels above baseline are detected, gas storage activities shall be suspended and the reservoir allowed to depressurize until the source of this contamination is found and corrected. Remediation may also be required if hydrocarbons contaminate the water column. Potential remediation methods shall also be identified. Because the duration of this impact and the effectiveness of this mitigation measure-specifically remediation, if required-are not known, the impact remains significant and unavoidable. The plan shall be reviewed by both DOGGR and the RWQCB.

Groundwater Monitoring Plan as clarified in Section 3 of the Addendum to the Final EIR (pp. 18 and 19):

Rationale for Finding: Even with the implementation of Mitigation Measures H-8a (preparation of an SPCC) and H-8b (groundwater monitoring wells), as well as Mitigation Measure HAZ-2ai (requiring laboratory tests of cores of the cap rock structure), the potential for release of gas from unknown flows in the reservoir cap cannot be assured, even though this potential is very low. Due to the consequences of such a release resulting in the contamination of a valuable aquifer in a populated area, the impact remains significant and unavoidable.

Reference: Final EIR Section D.7, Hydrology and Water Quality, provides a complete assessment of impacts to operation and maintenance resulting from the project to groundwater and presents mitigation measures. In addition, the Addendum to the Final EIR Section 3, Provision of Further Information on Mitigation Measures, provides clarifying information regarding the purpose and contents of the SPCC Plan as required by Mitigation Measure H-8a, as well as the groundwater monitoring plan as required by Mitigation Measure H-8b.

IV.3.3 Noise and Vibration

Final EIR Section D.9.3, Impact N-1 describes the potential construction-related impacts due to 24-hour-a-day, 7-day-a-week drilling activities at the wellhead site, which could impact residents across Power Inn Road.

Impact N-1: Construction Activities Would Temporarily Increase Local Noise Levels

As described in Final EIR Section D.9, Noise and Vibration, the closest sensitive noise receptors are located in the vicinity of the proposed wellhead site and consist of residential units located approximately 200 feet across Power Inn Road. Development of the wellhead site would take approximately 3 months to complete as each well requires approximately 8 days to drill. Noise during drilling operations will produce noise levels that would exceed the City's noise standard at the nearest sensitive receptor. Implementation of Mitigation Measures N-1a through N-1e would reduce short-term construction and drilling-related noise impacts of the proposed wellhead; however, this impact would remain significant and unavoidable due to drilling operations.

Finding: The CPUC finds that changes or alterations have been incorporated into the project that mitigate significant impacts on the environment from Impact N-1 to the extent feasible. Specifically, the CPUC finds that even with the implementation of Mitigation Measures N-1a through N-1e, the potential generation of short-term construction noise cannot be reduced to less-than-significant levels and will remain a significant and unavoidable impact.

N-1a Timing of Construction Activities. SNGS, LLC shall conduct construction activities between 7:00 a.m. and 6:00 p.m. Monday through Saturday and 9:00 a.m. to 6:00 p.m. Sunday or for a shorter period if so stipulated in the relevant local noise ordinance. Exceptions shall only apply to drilling operations associated with the proposed wellhead and HDD construction.

N-1b Temporary Noise Barriers. SNGS, LLC shall install temporary noise barriers between well drilling and HDD equipment and sensitive receptors. Temporary noise barriers shall be installed between the drilling rig and nearby receptors such that noise levels at nearby residences are reduced. Depending on the length of the noise barrier, it may need to be repositioned after drilling of each well has been completed and the drilling rig has been repositioned. The height and location of the noise barrier shall be determined based on the size of the drilling rig to be used and the location of the proposed wells, and shall be included in a drilling plan submitted to CPUC and the City of Sacramento for review and approval. Exceptions shall apply only upon approval by the city. It is estimated that the barriers will result in a 5 to 10 dBA attenuation, which may still result in nighttime noise impacts.

N-1c Advanced Notice to Sensitive Receptors. SNGS, LLC or its construction contractor shall provide advanced notice, between 2 and 4 weeks prior to construction, by mail to all sensitive receptors and residences within 300 feet of construction sites, staging areas, and access roads. The announcement shall state specifically where and when construction would occur in the area. If construction delays of more than 7 days occur, an additional notice shall be made, either in person or by mail. Notices shall provide tips on reducing noise intrusion; for example, by closing windows facing the planned construction. The notice shall also advise the recipient on how to inform the applicant/contractor if specific noise- or vibration-sensitive activities are scheduled so that construction can be rescheduled, if necessary, to avoid a conflict. SNGS, LLC shall also publish a notice of impending construction in local newspapers, stating when and where construction will occur. Prior to public notification, copies of all notices shall be submitted to the CPUC for review and approval.

N-1d Dedication of a Public Liaison. SNGS, LLC shall identify and provide a public liaison before and during construction to respond to concerns of neighboring receptors, including residents, about noise construction disturbance. Procedures for reaching the public liaison officer via telephone or in person shall be included in notices distributed to the public in accordance with Mitigation Measure N-1c. SNGS, LLC shall also establish a toll-free telephone number for receiving questions or complaints during construction and develop procedures for responding to callers. Prior to public notification, procedures included in the notices shall be submitted to the CPUC for review and approval. SNGS, LLC shall provide the CPUC with a bimonthly letter reporting the number of calls received and a summary of caller concerns and how concerns were addressed.

N-1e Use of Appropriate Mufflers. Construction equipment, excluding HDD drilling equipment, shall be equipped with the appropriate mufflers to reduce noise impacts.

Rationale for Finding: Even with the implementation of Mitigation Measures N-1a through N-1e, the potential for short-term construction-related noise cannot be reduced to less-than-significant levels during phases of construction because no feasible mitigation measures are available to affect such a reduction.

Reference: Final EIR Section D.9, Noise and Vibration, provides a complete assessment of impacts to short-term construction-related noise related to the Proposed Project and presents mitigation measures.

V. Findings on Rejected Mitigation Measures

No mitigation measures have been rejected.

VI. Alternatives to the Project

In total, 18 alternatives in addition to the No Project Alternative were considered in the alternatives screening process (see Final EIR Section C.3, Summary of Screening Results). Alternatives considered included six alternative storage site locations within Sacramento County and in close proximity to SMUD's service area; possible combination of these alternative gas storage sites; alternative storage sites outside the Sacramento area; seven project design alternatives as identified by SNGS, LLC for the proposed Florin Gas Field project; as well as three alternatives to natural gas storage. Alternatives to natural gas storage include methods of meeting project objectives that do not require development of a new underground natural gas storage facility (e.g., additional natural gas supply, energy conservation, and/or alternative fuels). The CPUC hereby finds that all of the alternatives eliminated from further consideration in the Draft EIR are infeasible, would not meet most project objectives and/or would not have the potential to avoid or substantially lessen the significant effects of the Proposed Project, as summarized in Table C-1 of the Final EIR (pp. C-8 to C-11).

Six alternatives to the Proposed Project were carried forward for detailed analysis in the EIR: three alternative gas field locations (Freeport Gas Field, Snodgrass Slough Gas Field, and Thornton Gas Field), as well as three alternative pipeline routes between the proposed wellhead site and proposed compressor station as identified by SNGS, LLC. Each of these alternatives meets most or all project objectives; is feasible from a technical, legal, and regulatory standpoint; and potentially avoids or reduces environmental effects of the Proposed Project. The EIR also analyzed a "No Project" alternative.

VI.1 Gas Field Alternatives

Freeport Gas Field

The Freeport Gas Field is located on a suburban fringe site and is partially located under the Sacramento Regional Wastewater Treatment Plant (SRWTP). Working gas storage capacity in this field is estimated to be over 1 bcf. Development of this field would involve constructing facilities similar to those required for the Proposed Project, including injection/withdrawal wells, compressor station, and connecting pipeline(s) between the wells and compressor station, as well as an interconnecting pipeline from the gas field to SMUD's natural gas pipeline system. Connection to the SMUD system would require the construction of a 16-inch interconnect pipeline for approximately 1 mile through rural areas.

Findings/Rationale. The CPUC finds that specific economic, legal, social, technological, and other considerations, including those considerations set forth in the EIR, make this alternative economically infeasible, and therefore rejects this alternative. The Freeport Gas Field would permit approximately 1+ bcf of working gas storage capacity. The revised development cost estimate for this alternative is $85.1 million with an annual cash flow after the first year of operation of -$13.5 million and a net income of -$8.83 million decreasing to -$133.97 million after 10 years of operation. The equity balance after 10 years of operation would be -$119.14 million. Given the relatively low return on investment, it is doubtful that the alternative would be financially feasible.

Because the Freeport Gas Field cannot produce a positive cash flow or net income, it is not capable of being constructed and operated in a successful manner within a reasonable amount of time. Compared to its potential profitability, the costs of constructing and operating the Freeport Gas Field are sufficiently severe to render it impractical to proceed with its development. For these reasons, the Freeport Gas Field alternative is economically infeasible.

As described in Final EIR Section E.2.2, Gas Field Alternatives, the Freeport Gas Field alternative would result in similar impacts to the environment as those for the Proposed Project. As with the Proposed Project, the Freeport Gas Field alternative would result in the following significant Class I impacts:

When compared to the Proposed Project, Class I construction noise impacts would be eliminated at the Freeport Gas Field alternative site.

The Freeport Gas Field alternative would eliminate the unmitigable short-term construction noise impact, as it is anticipated that required well drilling would not occur near sensitive receptors. Impacts to biological resources, cultural resources, hydrology and water quality, land use, agriculture, and recreation would be greater due to the rural character of the site. Impacts to air quality would be similar during operation; however, impacts would be slightly less during project construction due to a shorter construction period. Impacts to public services and utilities would be slightly less due to the decreased pipeline length and the potential to increase conflicts with existing utilities and to cause public service disruptions. Visual resource impacts would be similar to those of the Proposed Project because a portion of the gas field is currently a wastewater treatment plant. Geology and soils impacts would be similar because geologic conditions are similar to those of the Proposed Project. Impacts to population and housing under this alternative would be similar to the Proposed Project. This alternative would not result in significant environmental justice issues since it would not place a large number of facilities in the area and presumably land owners would receive royalties from the project. Noise and transportation/traffic would be less due to avoiding a more densely populated area.

Snodgrass Slough Gas Field

The Snodgrass Slough Gas Field is located in an agricultural area. To the east and adjacent of the field is the Reclamation District 551 Borrow Canal. Walnut Grove, located approximately 4 miles to the south of the site, is the nearest population center with a population of 669 people (U.S. Census 20005). Working gas storage capacity in this field is estimated to be greater than 2 bcf. Development of this field would involve constructing facilities similar to those required for the Proposed Project, including injection/withdrawal wells, compressor station, and connecting pipeline(s) between the wells and compressor station, as well as an interconnecting pipeline from the gas field to SMUD's natural gas pipeline system. Connection to the SMUD system would require the construction of an approximately 16-inch interconnect pipeline for approximately 5 miles. Construction of this interconnect pipeline would require HDD across the slough, I-5, and the UPRR.

Findings/Rationale. The CPUC finds that specific economic, legal, social, technological, and other considerations, including those considerations set forth in the EIR, make this alternative economically infeasible, and therefore rejects this alternative. The Snodgrass Slough Gas Field would permit approximately 2+ bcf of working gas storage capacity. The revised development cost estimate for this alternative is $105.8 million with an annual cash flow after the first year of operation of -$14.9 million and a net income of -$9.04 million decreasing to -$132.6 million after 10 years of operation. The equity balance after 10 years of operation would be -$114.13 million. Given the relatively low return on investment, it is doubtful that the alternative would be financially feasible.

Because the Snodgrass Slough Gas Field cannot produce a positive cash flow or net income, it is not capable of being constructed and operated in a successful manner within a reasonable amount of time. Compared to its potential profitability, the costs of constructing and operating the Snodgrass Slough Gas Field are sufficiently severe to render it impractical to proceed with its development. For these reasons, the Snodgrass Slough Gas Field alternative is economically infeasible.

The Snodgrass Slough Gas Field alternative would result in greater short-term construction-related impacts to the environment than the Proposed Project due to the increased length of the connecting pipeline route (5 miles) and longer construction period. These short-term construction impacts to biological and cultural resources can be mitigated to less than significant through avoidance of resources, restoration, or compensation for impacted resources.

Impacts to land use, agriculture, recreation, and public services and utilities would be greater due to the rural character of the site. Construction impacts to air quality and biological and cultural resources would also be slightly greater due to the increased length of the connecting pipeline route. These impacts can be mitigated to less-than-significant levels. Mitigation measures would include avoidance of resources, compensation for impacted resources, and dust control measures. Geology and soil impacts would be similar, as geologic conditions are similar to those of the Proposed Project. Visual resource impacts are similar to the Proposed Project with implementation of project mitigation measures. Impacts to population and housing under this alternative would be similar to the Proposed Project. This alternative would not result in significant environmental justice issues since it would not place a large number of facilities in the area and presumably land owners would receive royalties from the project. Noise and transportation/traffic would be less, due to avoidance of a more densely populated area.

The Snodgrass Slough Gas Field alternative would eliminate the significant unavoidable short-term construction noise impact as drilling for wells would not occur near sensitive receptors. Similar to the Proposed Project, the Snodgrass Slough Gas Field alternative would involve a significant Class I impact to hydrology and water quality (see Final EIR Section D.7) due to potential release of gas because of failure of the cap rock resulting in contamination of the groundwater aquifer, which could affect the local drinking water supply (Impact H-8).

Due to the remoteness of the site, Class I significant and unavoidable impacts to hazardous materials, public health and safety (Impact HAZ-2a) would be reduced to Class II with implementation of mitigation measures outlined in Final EIR Section D.6. This is also due to the area being remote and therefore the release of natural gas would result in substantially less risk than the Proposed Project.

Thornton Gas Field

The Thornton Gas Field is located in a predominantly agricultural area. The field is located less than a mile east of Franklin Boulevard and approximately 1.5 miles east of the I-5 freeway. The Cosumnes River Preserve is adjacent to the field to the north. The nearest population center is Thornton, which is located approximately 1 mile to the south of the site and has a population of 4,650 people (U.S. Census 20006). The Thornton Gas Field is large with a working gas storage capacity of greater than 7.5 bcf. Development of this field would involve constructing facilities similar to those required for the Proposed Project, including injection/withdrawal wells, compressor station, and connecting pipeline(s) between the wells and compressor station, as well as an interconnecting pipeline from the gas field to SMUD's natural gas pipeline system. Connection to the SMUD system would require the construction of a 7-mile, 16-inch-diameter interconnect pipeline through primarily rural areas.

Findings/Rationale. The CPUC finds that specific economic, legal, social, technological, and other considerations, including those considerations set forth in the EIR, make this alternative economically infeasible, and less desirable than the Proposed Project, and therefore rejects this alternative. The Thornton Gas Field is large and would require approximately 18 bcf of cushion gas to develop. The revised development cost estimate for this alternative is $188.1 million with an annual cash flow after the first year of operation of -$18.3 million and a net income of $-7.89 million decreasing to -$93.96 million after 10 years of operation. The equity balance after 10 years of operation would be -$60.72 million. Given the relatively low return on investment, it is doubtful that the alternative would be financially feasible.

Because the Thornton Gas Field cannot produce a positive cash flow or net income, it is not capable of being constructed and operated in a successful manner within a reasonable amount of time. Compared to its potential profitability, the costs of constructing and operating the Thornton Gas Field are sufficiently severe to render it impractical to proceed with its development. For these reasons, the Thornton Gas Field alternative is economically infeasible.

The Thornton Gas Field alternative would result in greater impacts to the environment than the Proposed Project due to the increased impacts related to the longer length of the connecting pipeline route (7 miles) and its location adjacent to the Cosumnes River Preserve. Greater impacts would occur to biological resources, hydrology and water quality, land use, agriculture, public services and utilities, and visual resources. Impacts to cultural resources would be slightly greater due to the increased length of connecting pipeline routes. Impacts to population and housing would be similar to those of the Proposed Project. This alternative would not result in significant environmental justice issues since it would not place a large number of facilities in the area and presumably land owners would receive royalties from the project. Impacts to air quality would be similar yet would include greater short-term construction impacts due to a longer construction period. Geology and soil impacts would be similar as geologic conditions are similar to those of the Proposed Project. Noise and transportation/traffic impacts would be less due to avoiding a more densely populated area.

The Thornton Gas Field alternative would eliminate the unmitigable short-term construction noise impact as drilling for wells would not occur near sensitive receptors. Similar to the Proposed Project, the Thornton Gas Field alternative would involve a significant Class I impact to hydrology and water quality due to potential gas migration causing contamination of the groundwater aquifer, which could affect the local drinking water supply.

Due to the remoteness of the site, HAZ-2a significant and unavoidable impacts would be reduced to less than significant with implementation of mitigation measures outlined in Final EIR Section D.6. This would also be due to the low number of people that would be affected should a gas leak occur.

VI.2 Project Design Alternatives

As identified by SNGS, LLC and analyzed in the EIR, three alternative pipeline routes between the proposed wellhead site and proposed compressor station were analyzed in detail in the EIR. Findings on each pipeline route alternative are presented below.

Alternative Wellhead Site to Compressor Station Pipeline Route 1

As described in Final EIR Section C.4.2.1, project facilities under the Alternative Pipeline Route 1 are the same as the Proposed Project, except for the route which the 16-inch-diameter underground natural gas pipeline would run from the wellhead site to the compressor station. Under this alternative, the gas pipeline from the wellhead to the compressor station would exit from the northwest corner of the wellhead site and head due east to the UPRR tracks. This alternative would parallel Junipero Street and cross an active industrial-use yard. It would then parallel the UPRR tracks, north to Elder Creek Road. At this point, the alignment continues north to Lemon Hill Avenue before entering the compressor station. This route would be approximately 7,800 feet long, approximately 450 feet longer than the Proposed Project.

Findings/Rationale. The CPUC finds that specific economic, legal, social, technological, and other considerations, including those considerations set forth in the EIR, make this alternative less desirable than the Proposed Project. Generally, development of the Proposed Project using the Alternative Pipeline Route 1 design between the proposed Florin Gas Field wellhead site to the proposed compressor station would result in slightly greater impacts to the environment due to a slightly greater construction impact area. Similar to the Proposed Project, Alternative Pipeline Route 1 would involve significant and unavoidable impacts, including the following:

CPUC finds that due to a greater construction impact area, impacts to cultural resources, hydrology and water quality, noise, and public services and utilities would be slightly greater. Impacts to air quality and visual resources would be similar yet would include greater short-term construction-related impacts due to a longer construction period. Impacts to geology and soils, land use, agriculture, recreation, and population and housing would be similar due to the project having the same general impact area as the Proposed Project. Impacts to transportation and traffic would be less, due to the pipeline route being located away from Power Inn Road. Impacts to biological resources would be slightly less, as a portion of the pipeline crosses an industrial yard.

Alternative Wellhead Site to Compressor Station Pipeline Route 2

As described in Final EIR Section C.4.2.2, project facilities under the Alternative Pipeline Route 2 are the same as the Proposed Florin Gas Field Storage Project, except for the route that the 16-inch-diameter underground natural gas pipeline would run from the wellhead site to the compressor station. Under this alternative, the gas pipeline would exit from the northwest corner of the wellhead site and run approximately 600 feet north within the utility alignment to Berry Avenue, and then parallel the UPRR tracks north to Elder Creek Road. At this point, the alignment continues north to Lemon Hill Avenue before entering the compressor station. This route would be approximately 7,700 feet long, approximately 350 feet longer than the Proposed Project.

Findings/Rationale. The CPUC finds that specific economic, legal, social, technological, and other considerations, including those considerations set forth in the EIR, make this alternative less desirable than the Proposed Project. Generally, development of the Proposed Project using the Alternative Pipeline Route 2 design between the proposed Florin Gas Field wellhead site to the proposed compressor station would result in slightly greater impacts to the environment due to a slightly greater construction impact area. Similar to the Proposed Project, Alternative Pipeline Route 2 would involve significant Class I impacts, including the following:

Due to a greater construction impact area, impacts to cultural resources, hydrology and water quality, noise, and public services and utilities would be slightly greater. Impacts to air quality and visual resources would be similar yet would include greater short-term construction impacts due to a longer pipeline length and construction period. Impacts to biological resources, geology and soils, land use, agriculture, recreation, population and housing, and transportation and traffic would be similar, due to this alternative having a similar general impact area as the Proposed Project.

Alternative Wellhead Site to Compressor Station Pipeline Route 3

As described in Final EIR Section C.4.2.3, project facilities under the Alternative Pipeline Route 3 are the same as the Proposed Florin Gas Field Storage Project, except for the route that the 16-inch-diameter underground natural gas pipeline would run from the wellhead site to the compressor station. Under this alternative, the gas pipeline from the wellhead to the compressor station would exit from the northwest corner of the wellhead site and run north approximately 1,650 feet within an existing utility alignment, and then approximately 650 feet north along Power Inn Road to Elder Creek Road. From that intersection, the pipeline would be installed within Elder Creek Road, for approximately 1,800 feet, to the intersection with the UPRR tracks. At this point, the alignment continues north to Lemon Hill Avenue before entering the compressor station. This route would be approximately 7,100 feet long total, approximately 250 feet shorter in length than the Proposed Project.

Findings/Rationale. The CPUC finds that specific economic, legal, social, technological, and other considerations, including those considerations set forth in the EIR, make this alternative less desirable than the Proposed Project. Generally, development of the Proposed Project using the Alternative Pipeline Route 3 design between the proposed Florin Gas Field wellhead site to the proposed compressor station would result in slightly less impacts to the environment due to a slightly smaller construction impact area. However, this alternative would not mitigate or avoid the Proposed Project's significant effects on the environment. Similar to the Proposed Project, Alternative Pipeline Route 3 would involve significant Class I impacts, including the following:

Impacts to geology and soils, land use, agriculture, and recreation, population and housing, and transportation/traffic would be similar due to this alternative having a similar general impact area as the Proposed Project. Impacts to air quality and visual resources would be similar but would involve less short-term impacts due to a slightly shorter construction period. Due to a shorter pipeline length and construction period, impacts to biological and cultural resources, hydrology and water quality, noise, and public services and utilities would be slightly less.

VI.3 No Project Alternative

As described in Final EIR Section C.6, under the No Project Alternative, none of the facilities including the natural gas reservoir, wellhead site, compressor station, and pipeline segments one and two associated with the Proposed Project or alternatives evaluated would be developed.

Findings/Rationale. As a result of the No Project Alternative, the CPUC finds that none of the short-term disruption impacts or long-term operation impacts would occur, including the significant and unavoidable impacts for: (1) the potential release of natural gas resulting in fire, explosion, and release of toxic substances (Final EIR Section D.6); (2) release of gas due to failure of the cap rock, resulting in contamination of the aquifer (Final EIR Section D.7); and (3) exceedance of the City of Sacramento's noise standard due to well drilling at the wellhead site (Final EIR Section D.9).

With implementation of the No Project Alternative, in the event of disruption of the PG&E natural gas pipelines 400/401, an adverse condition would occur as natural gas is used to generate approximately 30% of the electricity in the Sacramento area. SMUD has identified a need for at least a 30-day backup supply of natural gas in the event of an outage of the PG&E natural gas distribution system. Under the No Project Alternative, the SNGS Facility would not be built and the primary objective of the Proposed Project to increase storage in the event of an interruption of the importation system would not be met, thereby requiring SMUD and PG&E to implement cutbacks on non-essential uses of energy, and depending on the length of interruption, would run out of natural gas at some locations.

VII. Findings Regarding Other CEQA Considerations

VII.1 Growth-Inducing Impacts

A project will generate significant growth-inducing impacts if it generates growth or a concentration of population above what is assumed in local and regional land use plans, or in projections made by regional planning authorities. In addition, significant impacts could also occur if a project provides infrastructure or service capacity to accommodate future growth beyond that permitted by local or regional plans and policies.

Findings/Rationale. The need for additional natural gas storage in California is reflected in the Governor's Energy Policy as well as in policy statements of both the California Energy Commission and the CPUC. In addition, SMUD has identified the need for additional natural gas storage to maintain reliable electric service and to prevent extended outages and disruption of service for existing customers in the Sacramento metropolitan area. While the project would create additional storage of natural gas and more reliable infrastructure, it would not extend infrastructure to previously unserved areas. No additional capacity to provide natural gas is proposed as part of the project; therefore, the Proposed Project would not provide infrastructure or service capacity that could accommodate growth levels beyond those anticipated by local or regional plans and policies.

In addition, the Proposed Project would not modify land use or zoning designations to permit new residential or commercial development and, therefore, would not foster growth, remove direct growth constraints, nor add direct stimulus to growth (Final EIR Section F.1.2).

VII.2 Significant Irreversible Environmental Changes

Irreversible environmental changes caused by a project include uses of nonrenewable resources during construction and operation, long-term or permanent access to previously inaccessible areas, and irreversible damages that may result from project-related accidents.

Findings/Rationale. Development of the SNGS Facility would require a permanent commitment of natural resources resulting from the direct consumption of fossil fuels, construction materials, the manufacture of new equipment that largely cannot be recycled at the end of the project's useful lifetime, and energy required for the production of materials (Final EIR Section F.2).

The construction of the compressor station and installation of pipeline segments one and two would disturb wetlands and waters of the U.S., as well as wetlands under the jurisdiction of the CDFG and RWQCB. Impacts to biological resources from these permanent impacts are discussed in Final EIR Section D.3, Biological Resources. With implementation of mitigation presented in Final EIR Section D.3, permanent impacts to these resources would be less than significant.

While unlikely to occur, the migration of stored gas to the overlying groundwater aquifer and/or to the ground surface is considered significant. Public health and safety impacts resulting from gas migration are presented in Final EIR Section D.6, Hazardous Materials, Public Health and Safety. Despite implementation of mitigation presented in Section D.6, irreversible damage resulting from project-related accidents involving gas migration would remain significant and unavoidable. Similarly, the likelihood of the release of gas due to the failure of the cap rock is low; however, because of the duration of the impact and because the effectiveness of mitigation presented in Section D.7, Hydrology and Water Quality, is not known, irreversible damage resulting from project-related accidents involving the release of gas is considered significant and unavoidable.

VII.3 Responses to Comments on the Draft EIR and Revisions to the Final EIR

The Final EIR (June 2010) includes comments received on the Draft EIR (April 2009) and responses to those comments. The Addendum to the Final EIR includes minor clarification and information regarding the existing conditions, impacts, and mitigation for the Proposed Project. These clarifications and information do not result in the identification of new significant impacts. In addition, the Addendum to the Final EIR included revisions to responses to comments received during the extended Draft EIR comment period (April 8, 2009, through June 22, 2009).

Findings/Rationale. The addition of text and information merely clarifies and amplifies the existing conditions and impacts discussions and mitigation measures presented in the EIR and does not trigger recirculation per CEQA Guidelines Section 15088.5(f)(2).

VIII. Adoption of a Monitoring and Reporting Program for the CEQA Mitigation Measures

PRC Section 21081.6 requires the Commission to adopt a monitoring or reporting program regarding the changes in the project and mitigation measures imposed to lessen or avoid significant effects on the environment. The MMCRP is adopted because it fulfills the CEQA mitigation monitoring requirements:

The SNGS Project's MMCRP is included as Section G of the Final EIR.

IX. Mitigation Monitoring and Reporting

This EIR includes an MMCRP for the mitigation measures proposed for the project. An MMCRP table for the Proposed Project and its alternatives is provided at the end of each issue area in Section D (Sections D.2 through D.13), which lists each mitigation measure and outlines procedures for successful implementation. Section G provides the recommended framework for effective implementation of the MMCRP by the CEQA lead agency, the CPUC, and describes the roles of responsible parties in carrying out and enforcing adopted mitigation measures.

IX.1 Authority for the Mitigation Monitoring, Compliance, and Reporting Program

The California Public Utilities Code confers authority upon the CPUC to regulate the terms of service and the safety, practices, and equipment of utilities subject to its jurisdiction. It is the standard practice of the CPUC, pursuant to its statutory responsibility to protect the environment, to require that mitigation measures stipulated as conditions of approval be implemented properly, monitored, and reported on. In 1989, this requirement was codified statewide as Section 21081.6 of the PRC. Section 21081.6 requires a public agency to adopt an MMCRP when it approves a project that is subject to preparation of an EIR and where the EIR for the project identifies significant adverse environmental effects. CEQA Guidelines Section 15097 (14 CCR 15000 et seq.) was added in 1999 to further clarify agency requirements for mitigation monitoring or reporting.

The purpose of an MMCRP is to ensure that measures adopted to mitigate or avoid significant impacts of a project are implemented. The CPUC views the MMCRP as a working guide to facilitate not only the implementation of mitigation measures by the project proponent, but also the monitoring, compliance, and reporting activities of the CPUC and any monitors it may designate.

The CPUC will address its responsibility under PRC Section 21081.6 when it takes action on SNGS, LLC's application for a CPCN. If the CPUC approves the application, it will also adopt an MMCRP that includes the mitigation measures ultimately made a condition of approval by the CPUC.

IX.2 Organization of the Final Mitigation Monitoring Program

If the project or an alternative to the project is approved, the MMCRP should serve as a self-contained general reference for the mitigation monitoring program adopted by the CPUC for the SNGS Project. To accomplish this, the final mitigation monitoring program (final plan) should contain eleven elements (indicated below). If and when a project has been approved by the CPUC, they will compile the final plan from the mitigation monitoring program in the Final EIR, as adopted. The elements of the mitigation monitoring program are as follows:

MMCRP Introduction:

Roles and Responsibilities:

General Monitoring Procedures:

IX.2.1 MMCRP Introduction

Project Description

In addition to, a description of the authority and purpose of the program, the program adoption process, and an overview of the MMCRP organization, this section of the Final Mitigation Monitoring Implementation Plan will contain a concise overview and description of the approved project and will clearly outline its physical location and project timetable, including construction segments. This section will also specify the "master" reference(s), which the monitors and the applicant will use in carrying out the program (e.g., the Final EIR, but also more detailed working maps and plans). The APMs to which SNGS, LLC has committed to reduce potential impacts will also be listed in this section.

This section will include the list of agencies with jurisdiction over the project (from Final EIR Table A-1) and a description of where their respective jurisdictions exist. For example, for a given construction segment, each jurisdictional agency's contact person's information (including name, address, telephone and fax numbers) should be provided. This section will also provide a guide to the organization of the document.

Mitigation Monitoring Programs

The final plan will incorporate the organization and display of the individual issue area mitigation monitoring programs presented in the Final EIR, as well as all APMs applicable to the project. Each mitigation measure will be numbered and described briefly. The Final EIR should be consulted for an in-depth discussion of each mitigation measure. The final plan will also include:

IX.2.2 Roles and Responsibilities

Monitoring Responsibility

As the lead agency under CEQA, the CPUC is required to monitor the SNGS Project to ensure that the required mitigation measures and APMs are implemented. The CPUC will be responsible for ensuring full compliance with the provisions of the MMCRP and has primary responsibility for its implementation. The purpose of the MMCRP is to document that the mitigation measures required by the CPUC are implemented, and that mitigated environmental impacts are reduced to the level identified in the certified Final EIR.

The CPUC may delegate duties and responsibilities for monitoring to other environmental monitors or consultants as deemed necessary, and some monitoring responsibilities may be assumed by responsible agencies (such as affected jurisdictions and cities). The number of construction monitors assigned to the project will depend on the number of concurrent construction activities and their locations. However, the CPUC will ensure that each person delegated monitoring duties or responsibilities is qualified to monitor compliance.

Any mitigation measure study or plan that requires approval from the CPUC must allow for adequate review time, as stipulated in the mitigation monitoring tables at the end of each impact area section (Final EIR Sections D.2-D.13). Other agencies and jurisdictions may require longer review periods. It is the responsibility of the environmental monitors assigned to the project to ensure that appropriate agency reviews and approvals are obtained.

The CPUC and its environmental monitors will also ensure that any variance process or deviation from the procedures identified under the MMRCP is consistent with CEQA requirements; no project variance will be approved by the CPUC if it creates new significant impacts. As defined in this section, a variance should be strictly limited to minor project changes that will not trigger other permit requirements that do not increase the severity of an impact or create a new impact, and that clearly and strictly comply with the intent of the mitigation measure. A Proposed Project change that has the potential for creating significant environmental effects will be evaluated to determine whether supplemental CEQA review is required. Any proposed deviation from the approved project, adopted mitigation measures, and APMs, and correction of such deviation, shall be reported immediately to the CPUC and the environmental monitors assigned to the project for their review and approval. In some cases, a variance may also require approval by a CEQA-responsible agency.

Enforcement Responsibility

The CPUC is responsible for enforcing the procedures adopted for monitoring through the environmental monitors assigned to the project. The environmental monitors shall note problems in the field, notify appropriate agencies or individuals about issues, and report compliance status to the CPUC project manager.

The CPUC has the authority to halt any construction, operation, or maintenance activity associated with the Proposed Project if the activity is determined to be a deviation from the approved project, adopted mitigation measures, or APMs. The CPUC may delegate this authority to third-party environmental monitors assigned to the project.

Mitigation Compliance Responsibility

The applicant, SNGS, LLC, is responsible for successfully implementing all the adopted mitigation measures in the MMCRP. The MMCRP will contain criteria that define whether mitigation is successful. Standards for successful mitigation also are implicit in many mitigation measures that include requirements such as obtaining permits or avoiding a specific impact entirely. Other mitigation measures include success criteria that are listed in the mitigation monitoring tables at the end of each impact area section in Final EIR Section D. Additional mitigation success thresholds will be established by applicable agencies with jurisdiction through the permit process and through the review and approval of specific plans for the implementation of mitigation measures.

The applicant shall inform the CPUC and its monitors in writing of any mitigation measures that are not or cannot be successfully implemented. In coordination with its monitors, the CPUC will assess whether alternative mitigation is appropriate and specify to SNGS, LLC when subsequent actions are necessary to protect resources consistent with the findings of the EIR.

Dispute Resolution

It is expected that the final MMCRP will reduce or eliminate many potential disputes. However, even with the best preparation, disputes may occur. In such event, the following procedures will be followed:

Parties may also seek review by the Commission through existing procedures specified in the Commission's Rules of Practice and Procedure for formal and expedited dispute resolution, although a good-faith effort should first be made to use the foregoing procedures.

IX.2.3 General Monitoring Procedures

Environmental Monitors

Many of the monitoring procedures will be conducted during the construction phase of the project. The CPUC and the environmental monitors are responsible for integrating the mitigation monitoring procedures into the construction process in coordination with SNGS, LLC. To oversee the monitoring procedures and to ensure success, the environmental monitors assigned to the project must be on site during construction activities that have the greatest potential to create a significant environmental impact or other impact for which mitigation is required. The environmental monitors are responsible for ensuring that all procedures specified in the monitoring program are followed.

Construction Personnel

A key component of a successful mitigation monitoring program will be obtaining the full cooperation of construction personnel and supervisors. Many of the mitigation measures require action on the part of the construction supervisors or crews for successful implementation. To ensure success, the following actions, detailed in specific mitigation measures included in the final plan, will be taken:

General Reporting Procedures

Site visits and specified monitoring procedures performed by other individuals will be reported to the environmental monitors assigned to the relevant construction segment. A monitoring record form will be submitted to the environmental monitor by the individual conducting the visit or procedure so that details of the visit can be recorded and progress traced by the environmental monitors. A checklist will be developed and maintained by the environmental monitors to track all procedures required for each mitigation measure and to ensure that the timing specified for the procedures is adhered to. The environmental monitors will note any issues that may occur and take appropriate measures to bring a situation back into compliance. The applicant shall provide the CPUC with written weekly reports of the project, which shall include progress of construction, resulting impacts, mitigation implemented, and all other noteworthy elements of the project. Weekly reports shall be required as long as mitigation measures are applicable.

Public Access to Records

The public is allowed access to records and reports used to track the monitoring program. Monitoring records and reports will be made available for public inspection by the CPUC on request. The CPUC and the applicant will develop a filing and tracking system. For additional information on mitigation monitoring and reporting for the SNGS Project, the Energy Division of the CPUC will maintain an Internet website, accessible at http://www.cpuc.ca.gov/environment/info/dudek/sngs/SNGS_Home.htm. In order to facilitate the public's awareness, the CPUC will make periodic reports available on the website.

IX.3 Condition Effectiveness Review

In order to fulfill its statutory mandates to mitigate or avoid significant effects on the environment and to design a mitigation monitoring program to ensure compliance during project implementation (PRC Section 21081.6):

These reviews will be conducted in a manner consistent with the CPUC's rules and practices.

X. Mitigation Monitoring Program Table

Final EIR Table G-1, Mitigation Monitoring Program, along with the full text of the mitigation measures themselves, form the Proposed Project's MMCRP. The MMCRP is hereby adopted by the CPUC. The CPUC will prepare the Mitigation Monitoring Implementation Plan prior to the start of project-related activities in order to implement the adopted MMCRP.

(End of Attachment A)

1 California Public Resources Code, Section 21000-21177. California Environmental Quality Act, as amended.

2 14 CCR 15000-15387 and Appendix A-L. Guidelines for Implementation of the California Environmental Quality Act, as amended.

3 "Equity" in this sense means a fair economic benefit to each property owner living above the Florin Gas Field.

4 Since the Addendum to the PEA was prepared, the SMAQMD increased the NOX mitigation fee from $14,300 to $16,000. Also, the Addendum to the PEA did not include the administrative fee of 5%.

5 U.S. Census (U.S. Census Bureau). 2000. U.S. Census Bureau American Fact Finder. Data Year 2000. Accessed online: http://factfinder.census.gov/home/saff/main.html?_lang=en

6 U.S. Census (U.S. Census Bureau). 2000. U.S. Census Bureau American Fact Finder. Data Year 2000. Accessed online: http://factfinder.census.gov/home/saff/main.html?_lang=en

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