4.15 UTILITIES AND SERVICE SYSTEMS

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1 4.15 UTILITIES AND SERVICE SYSTEMS This section analyzes potential impacts to utility and service systems, including water supply and associated conveyance infrastructure, wastewater conveyance and treatment infrastructure, and solid waste disposal systems. For discussion of storm drain infrastructure and associated water quality impacts, please refer to Section 4.9, Hydrology and Water Quality Setting The Rio d Oro Specific Plan area consists of approximately 689 acres located in unincorporated Butte County, east of the City of Oroville. The Rio d Oro Specific Plan area is generally bounded to the north and west by Pacific Heights Road, to the east by Power House Hill Road and U.S. Highway 70, and to the south by Palermo Road. The area is bisected by U.S. Highway 70 (SR-70). As discussed in Section 2.0, Project Description, off-site water and sewer infrastructure improvements would be required. Approximately 3,500 feet of new 16-inch water main would be constructed from the northeast corner of the project site at the intersection of Pacific Heights Road/Ophir Road east along Ophir Road and connect to an existing 14-inch main near the intersection of Baggett Marysville Road and Ophir Road. From the Pacific Heights/Ophir Road intersection, a 12-inch main line would be constructed through the project site along the primary circulation road during development of the backbone infrastructure. The line would exit the site at the southern access road, extend south along Pacific Heights Road and connect to an existing SFWPA 8-inch main within Palermo Road at Lone Tree Road just east of SR 70. A wastewater force main would be constructed along Pacific Heights Road crossing Highway 70 to a planned City of Oroville lift station at the intersection of Ophir Road and Power House Hill Road. The wastewater would then flow approximately 1.4 miles east and then northeast in new sewer lines along Ophir Road and Bagget Marysville Road, then west approximately 2,000 feet along a new sewer line in Georgia Pacific Way to South 5 th Avenue, then approximately one mile north along a new sewer line in South 5 th Avenue to the SC-OR treatment plant. a. Water. This section presents information about the region s water supply system. Information for this section comes from the South Feather Water and Power Agency s (SWFPA) 2010 Urban Water Management Plan (UWMP) (Adopted May 22, 2012 by SWFPA) and the SB 610 Water Supply Assessment - Rio d Oro (Approved February 25, 2014 by SWFPA)(Appendix I). Public Water System. The Specific Plan area lies within the sphere of influence of South Feather Water and Power (SFWPA) and SFWPA would supply water to the Specific Plan area. The existing sphere of influence boundary for the SFWPA is coincident with Pacific Heights Road; however, the site is outside the SFWPA boundary. The developer would apply to expand the SFWPA District boundary and annex the Specific Plan Area into the District (Rio d Oro Specific Plan, 2009). SFWPA provides water to approximately 6,680 households, maintains a service area of over 31,000 acres supplied by 141 miles of pipeline, and delivers irrigation water seasonally to over 500 customers by way of 110 miles of primarily open earthen canals (SFWPA SB610, February 2014)

2 SFWPA s domestic-water facilities are comprised of two treatment plants that use a combination of filtration and chlorination to remove contaminants. Following the treatment process, water is distributed through SFWPA s pipelines to one of its four storage facilities, and from there to consumption by SFWPA s customers (SFWPA SB610, February 2014). Not all households within SFWPA s domestic water distribution system sphere of influence are connected to the system. Many get their potable water from individual on-site wells. Supplied water is used for residential, commercial, governmental and landscaping purposes (SFWPA SB610, February 2014). The Agency operates a hydropower project (South Feather Power Project, FERC License No. 2088) located in Butte, Plumas and Yuba counties on the South Fork of the Feather River and Slate Creek, a tributary to the North Fork Yuba River, and mostly within the Plumas National Forest. The Project includes Little Grass Valley Reservoir, Sly Creek Reservoir, Lost Creek Reservoir, Ponderosa Reservoir, and Miners Ranch Reservoir, with a combined storage of 164,577 acre-feet (af) with storage rights of 186,312 af (SFWPA SB610, February 2014). Water Supply. All of the water for the SFWPA s distribution system is derived from surface water of the South Fork of the Feather River and the upper portion of the Slate Creek watershed. SFWPA is permitted to store 172,064 acre-feet of runoff from the watersheds of the South Fork of the Feather River and Slate Creek (a tributary of the North Fork of the Yuba River) in several Agency reservoirs: Little Grass Valley, Sly Creek, Lost Creek, Forbestown, Ponderosa, and Miners Ranch (SFWPA 2010). The total average annual runoff of the South Fork of the Feather River excluding diversions from Slate Creek is 254,347 AF. SFWPA operates its system of reservoirs and hydropower plants and manages the runoff throughout the annual hydrologic cycle to best achieve its purposes and needs including power supply, flood control, irrigation and municipal water supply, and recreation. There are nine dams that either divert or store water supply for multipurpose uses (SFWPA SB ). (Urban Water Management Plan) SFWPA s has an annual watershed production of 254,347 acre-feet for years 2015 through 2035 as shown in Table below. Also shown in Table , SFWPA s total current demand or consumptive usage (domestic and irrigation) in 2010 was 19,398 acre-feet and in 2035 it is anticipated to be 25,168 acre-feet (SFWPA SB610, February 2014). Based on the existing and future demand, the SFWPA has a net remaining capacity (or excess supply) of approximately 194,938 acre-feet currently and in 2035 it is anticipated to be 229,179 acre-feet as shown in Table (SFWPA SB610, February 2014)

3 Table Current and Projected Water Supplies and Demand Water Supply Sources* Wholesaler supplied Supplier-produced groundwater Supplier-produced surface water** 214, , , , , ,347 Transfers in Exchanges In Recycled Water Desalinated Water Other Total Supply 214, , , , , ,347 Total Demand 19,398 20,023 20,802 22,330 23,901 25,168 Surplus Supply / Remaining Capacity *Units: acre-feet per year **Average / Normal Water Year water supply yield from Agency's watershed. Source: SFWPA 2010 UWMP and SFWPA SB610, February , , , , , ,179 b. Wastewater. The City of Oroville or LOAPUD will be the Sanitary Sewer conveyance provider for the Rio d Oro project. LOAPUD S existing SOI is approximately 10,016.5 in size. As discussed in Section 4.10, Land Use and Planning, the 689 acre Rio D Oro Specific Plan area is included within LOAPUD SOI but not within the City of Oroville SOI. The proposed project would facilitate the future annexation of the SOI addition areas to LOAPUD (or the City of Oroville) for the provision of sanitary sewer services (LOAPUD 2013). The sewer treatment plant, run by Sewerage Commission Oroville Region (SC-OR) is owned by a tripartite of: the City of Oroville, Thermalito Sewer and Water District (TSWD), and the Lake Oroville Area Public Utility District (LOAPUD) (Benchmark Engineering 2007). SC-OR is responsible for the operation and maintenance of the wastewater treatment plant and three interceptor/trunk lines that collect wastewater discharges from the three member entities. The treatment plant and interceptor lines are less than 30 years old and are generally in good condition. Additionally, SCOR is responsible for meeting the wastewater treatment and discharge standards specified in the federal NPDES permit issued by the Central Valley RWQCB (Butte County 2010). The wastewater treatment plant operated by SC-OR has a design capacity of 6.5 million gallons per day (MGD) average dry weather flow (ADWF), and current wastewater flows of approximately 3.2 MGD, leaving a surplus capacity of approximately 3.3 MGD under average dry weather flow (LOAPUD 2013). In addition to ADWF calculations, SC-OR recommends using Equivalent Dwelling Unit (EDU) calculations as a conservative estimate of remaining capacity. Agencies that own SC-OR have committed service to approximately 18,270 EDUs. Assuming each EDU generates 210 gallons of wastewater daily (as defined in the current Master Plan), total service commitments equal 3.83 MGD leaving an approximate surplus of 2.7 MGD. As discussed in the LOAPUD Sphere of Influence Update, Draft Environmental Impact Report, based upon

4 population growth estimates supplied by the member entities (LOAPUD, TWSD and the City of Oroville), SC-OR has projected that their wastewater treatment plant will need to have treatment capacity for approximately 32,179 (EDUs) (8.37 MGD) by 2030 (LOAPUD 2013). SC-OR recently conducted a capacity study, updated its Master Plan and adjusted its connection fee structure to plan and fund additional improvements that will address increased capacity needs in both the interceptor lines and treatment plant capacity. The capacity study and Master Plan updates provide an improvement and funding plan that will enable SCOR to accommodate an additional 4,200 EDUs beyond the current capacity of approximately 20,400 EDUs. SCOR will implement the needed improvements incrementally to meet increased capacity needs. c. Solid Waste Disposal. Recology Butte Colusa Counties (formerly Norcal Waste Systems) provides residential garbage and recycling collection in the region including within the proposed Specific Plan area. Area household solid waste collected is taken to the Recology Butte Colusa Counties facility in Oroville. Recoverable materials are removed from the waste stream at the facility for recycling. Typical recyclable materials include glass, paper, metals, and plastics. The facility also accepts some appliances (such as refrigerators and air conditioners), tires, yard waste, and construction debris. The permitted capacity of the Recology Butte Colusa Counties facility in Oroville is 1,500 tons per day with 600 vehicle trips per day. The facility s high daily estimated intake is 500 tons per day (Carl Peters, Operations Manager, Recology Butte Colusa Counties, 2013). Thus, on average, the facility has over 1,000 tons per day remaining capacity. Most municipal wastes that are not recyclable and recovered at the Recology facility are hauled to the Neal Road Recycling and Waste Facility, which is owned by Butte County and managed by the Butte County Department of Public Works. The Neal Road Recycling and Waste Facility is permitted to accept municipal solid waste, inert industrial waste, demolition materials, special wastes containing non-friable asbestos, and septage. The Neal Road Recycling and Waste Facility is permitted to accept 1,500 tons per day, and the average daily disposal into the landfill is approximately 500 tons (Butte County 2010). The total capacity of the Neal Road Recycling and Waste Facility is approximately 20,217,600 cubic yards (13,141,300 tons). Based on an average waste disposal amount of 500 tons per day and using the Butte County Association of Government s (BCAG) average annual growth rate of 1.1 percent, it is anticipated that the site will continue to receive solid waste until at least the year 2033 (Butte County 2010 and CalRecycle Facility Profile, Accessed April 2014). d. Regulatory Framework. Water Supply. The Subdivision Map Act, Government Code Sections et seq. California Government Code Sections et seq. (referred to as the Subdivision Map Act) set forth general provisions, procedures, and requirements for the division of land including the provision of public services

5 Recycled Water Regulations. The EPA, State Water Resources Control Board (SWRCB), Regional Water Quality Control Boards (RWQCB), and California Department of Health Services (CDHS) all have a role in regulating the use of recycled water in the State of California. The SWRCB has adopted Resolution No 77-1 (Policy with Respect to Water Reclamation in California), which empowers the State Board and Regional Boards to encourage and consider funding for water reclamation projects that do not impair water rights or beneficial in-stream uses. The CDHS determines how recycled water may be used in California, and designates the level of treatment required for each of these permitted uses (Title 22, California Code of Regulations). Urban Water Management Planning Act (California Water Code, Division 6, Park 2.6, Section et seq.). The Urban Water Management Planning Act was developed to address concerns regarding potential water supply shortages throughout California. It requires information on water supply reliability and water use efficiency measures. Urban water suppliers are required to develop and implement UWMPs to describe their efforts to promote efficient use and management of water resources. Title 22. The California Water Code requires the California Department of Public Health (CDPH) to establish water reclamation criteria. In 1975 the CDPH prepared Title 22 regulations (22 C.C.R et seq.) to satisfy this requirement. Title 22 regulates production and use of reclaimed water in California by establishing three categories of reclaimed water: primary effluent, secondary effluent, and tertiary effluent. In addition to defining reclaimed water uses, Title 22 also defines requirements for sampling and analysis of effluent and specifies design requirements for treatment facilities. Senate Bill (SB) 610. SB 610 (Water Code et seq.) was adopted in 2001 and reflects the growing awareness of the need to incorporate water supply and demand analysis at the earliest possible stage in the land use planning process. SB 610 amended the Urban Water Management Planning Act (Water Code et seq.) to add Section et seq. Water supply planning under SB 610 requires reviewing and identifying adequate available water supplies necessary to meet the demand generated by a project, as well as the cumulative demand for the general region over the next 20 years, under a broad range of water conditions. This information is typically found in the current UWMP for the project area. SB 610 requires the identification of the public water supplier. Under SB 610, a Water Supply Assessment (WSA) is needed only if a project exceeds thresholds of development identified, thereby relieving projects of less significance from the requirements of the bill (Water Code 10910). As noted above a WSA was prepared for the proposed Specific Plan (SFWPA SB 610, Approved February 2014). Butte County General Plan. The Health and Safety Element of the Butte County General Plan 2030 contains several goals and policies related to water supply, listed below. Goals Goal W-2 Ensure an abundant and sustainable water supply to support all uses in Butte County

6 Goal W-3 Effectively manage groundwater resources to ensure a long-term water supply for Butte County. Goal W-4 Promote water conservation as an important part of a long-term and sustainable water supply. Policies Policy W-P2.5 The expansion of public water systems to areas identified for future development on the General Plan land use map is encouraged. Policy W-P2.9 Applicants for new major development projects, as determined by the Department of Development Services, shall demonstrate adequate water supply to meet the needs of the project, including an evaluation of potential cumulative impacts to surrounding groundwater users and the environment. Policy W-P3.3 The County shall protect groundwater recharge and groundwater quality when considering new development projects. Policy W-P4.4 Opportunities to recover and utilize wastewater for beneficial purposes shall be promoted and encouraged. Policy W-P4.5 The use of reclaimed wastewater for non-potable uses shall be encouraged, as well as dual plumbing that allows graywater from showers, sinks and washers to be reused for landscape irrigation in new developments. Policy W-P4.6 New development projects shall adopt best management practices for water use efficiency and demonstrate specific water conservation measures. Wastewater Treatment. The Subdivision Map Act, Government Code Section et seq. Division 2 of the Government Code of the State of California (referred to as the Subdivision Map Act) sets forth general provisions, procedures, and requirements for the division of land including the provision of public services. The Clean Water Act (CWA) / National Pollutant Discharge Elimination System (NPDES) Permits. The CWA regulates discharges from non-point source and traditional point source facilities, such as municipal sewage plants and industrial facilities. Section 402 of the Act creates the NPDES regulatory program which makes it illegal to discharge pollutants from a point source to the waters of the United States without a permit. Point sources must obtain a discharge permit from the proper authority (usually a state, sometimes EPA, a tribe, or a territory). NPDES permits cover industrial and municipal discharges, discharges from storm sewer systems in larger cities, storm water associated with numerous kinds of industrial activity, runoff from construction sites disturbing more than one acre, mining operations, and animal feedlots and aquaculture facilities above certain thresholds

7 All so-called "indirect" dischargers are not required to obtain NPDES permits. An indirect discharger is one that sends its wastewater into a city sewer system, so it eventually goes to a sewage treatment plant. Although not regulated under NPDES, "indirect" discharges are covered by another CWA program called pretreatment. "Indirect" dischargers send their wastewater into a municipal sewer system, which carries it to the municipal sewage treatment plant, through which it passes before entering surface water. SC-ORs current NPDES Permit, which regulates the wastewater effluent quantity and quality upon discharge, was issued on May 27, 2010 (Order R ). Butte County General Plan. The Public Facility and Services Element of the Butte County General Plan 2030 contains several goals and policies related to water supply, listed below. Goals Goal PUB-12 Manage wastewater treatment facilities at every scale to protect the public health and safety of Butte County residents and the natural environment. Goal PUB-13 Plan adequate wastewater infrastructure to serve new development. Policies Policy PUB-P12.3 New community sewerage systems shall be managed by a public County sanitation district or other County-approved methods. Proponents shall demonstrate the financial viability of constructing, operating, and maintaining the proposed community sewerage system. Policy PUB-P12.4 New sewer collection and transmission systems shall be designed and constructed to minimize potential inflow and infiltration. Solid Waste. The Subdivision Map Act, Government Code Sections et seq. California Government Code Sections et seq. (referred to as the Subdivision Map Act) set forth general provisions, procedures, and requirements for the division of land including the provision of public services. California Integrated Waste Management Act of 1989 (AB 939). This law was enacted to reduce, recycle, and reuse solid waste generated in the State to the maximum extent feasible (Pub. Res. Code ). Specifically, the Act required cities and counties to adopt a Source Reduction and Recycling Element of their Waste Management Plans to describe actions to be implemented to achieve waste reduction goals (Pub. Res. Code 41750). California Solid Waste Reuse and Recycling Access Act of 1991 (AB 1327). California Solid Waste Reuse and Recycling Access Act of 1991, as amended, requires each local jurisdiction to adopt an ordinance requiring commercial, industrial, or institutional building, marina, or residential buildings having five or more living units to provide an adequate storage area for the collection and removal of recyclable materials (Pub. Res. Code Chapter 18). The sizes of these storage areas are to be determined by the appropriate jurisdictions ordinance. If no such

8 ordinance exists with the jurisdiction, the CalRecycle model ordinance shall take effect (Pub. Res. Code 42911). Construction and Demolition Waste Materials Diversion Requirements (SB 1374). Construction and Demolition Waste Materials Diversion Requirements passed in 2002, added Section to the California Public Resources Code. SB 1374 dictates that jurisdictions include in their annual AB 939 report a summary of the progress made in diverting construction and demolition waste (Pub. Res. Code 42912). The legislation also requires that CalRecycle adopt a model ordinance for diverting 50 to 75 percent of all construction and demolition waste from landfills (Pub. Res. Code 42912) Environmental Impact Analysis a. Methodology and Significance Thresholds. The analysis of impacts to utilities involved: (1) Incorporation of the findings of the SB 610 Water Supply Assessment Rio d Oro Specific Plan by South Feather Water and Power, February 2014 (Appendix I), (2) Urban Water Management Plan 2010 by South Feather Water and Power, adopted May 2012, (3) the Rio D Oro Sewer Feasibility Analysis prepared by Benchmark Engineering in 2007, (4) the LOAPUD Sphere of Influence EIR 2013, (5) Butte County General Plan 2030 Draft EIR (2010), (6) landfill statistics for the Neal Road Recycling and Waste Facility from CalRecycle, (7) and information provided by Recology Butte Colusa Counties staff. Impacts to utilities are considered significant if: Exceed wastewater treatment requirements of the applicable Regional Water Quality Control Board; Require or result in the construction of new water or wastewater treatment facilities or expansion of existing facilities, the construction of which could cause significant environmental effects; Require or result in the construction of new storm water drainage facilities or expansion of existing facilities, the construction of which could cause significant environmental effects; Have sufficient water supplies available to serve the project from existing entitlements and resources, or are new or expanded entitlements needed; Result in a determination by the wastewater treatment provider which serves or may serve the project that it has adequate capacity to serve the project s projected demand in addition to the provider s existing commitments; Be served by a landfill with sufficient permitted capacity to accommodate the project s solid waste disposal needs; Comply with federal, state, and local statutes, and regulations related to solid waste. As discussed above, storm water drainage facilities are discussed in Section 4.9, Hydrology and Water Quality. The following addresses impacts related to water, wastewater and solid waste

9 b. Project Impacts and Mitigation Measures. Impact UTL-1 The proposed project would generate estimated water demand of about 1,428 acre feet per year (AFY). Based on a detailed cumulative water supply assessment, South Feather Water and Power Agency s projected water supply is expected to be adequate to serve both the project demands through the Year Therefore both the project specific and cumulative impact on water supply would be Class III, less than significant. SFWPA water facilities currently exist east of the project site. To connect to the existing SFWPA water system, the project will require an additional 16-inch water main from the intersection of Pacific Heights Road and Ophir Road running parallel to an existing 8-inch main in Ophir Road and connecting to an existing 14-inch main near the intersection of Baggett Marysville Road and Ophir Road. The looped water line within the project and along Pacific Heights Road would also be a 12-inch main tied into an existing 8-inch main in Palermo Road east of Highway 70. All development within the Specific Plan area will require connection to the existing SFWPA water system. A SB 610 Water Supply Assessment (WSA) was prepared for the proposed Specific Plan by SFWPA. The WSA assumes that commercial uses would use approximately 3,000 GPD per acre and residential uses would use approximately 165 gpd per person. For the proposed Specific Plan, Phase I of the project (200 residential units) would result in approximately 82,500 gpd of water (or approximately 92.4 acre-feet per year (AFY)) (see Table ). According to the WSA, in 2035 at full buildout, the proposed Specific Plan would result in a demand of approximately 1,216,125 gpd or approximately 1,362 AFY. As shown in Table , the increase in water use as a result of the proposed Specific Plan, both for Phase 1 and for full buildout in the year 2035, would not exceed the SFWPA s water supplies at the completion of Phase I or full buildout anticipated for the year Table Anticipated Annual Project Water Demands Year Description Cumulative Units Daily Flows (gpd) Annual Demand (AFY) 2017 Phase residential units 82,500 gpd 92.4 AFY 2035 Full Buildout 2,700 residential units plus 30 acres commercial, public facilities and recreation 1,216,125 gpd 1,362 AFY Source: SFWPA SB610 WSA for the Rio D Oro Project, February Table Current and Projected Water Supplies and Demand with Project SFWPA Surplus Supply / Remaining Capacity w/out Project* Phase 1 (Anticipated to be 2017) Full Buildout (2035) 234,324 AFY 229,179 AFY Total Demand of Project 92.4 AFY 1,362 AFY Surplus Supply / Remaining Capacity w/project 234, ,817 * See Table for SFWPA Surplus Supply

10 Additionally, the Rio d Oro Specific Plan proposes a number of water conservation measures and development of a reclaimed water system for irrigation. The details regarding connection to the SC-OR outfall and conveyance of wastewater to the on-site treatment facility have not been confirmed. It is likely this element of the project would require further environmental review prior to development of this infrastructure. Proposed water conservation techniques including the following: Installing high efficiency toilets (dual flush) in all new homes, commercial uses, and Schools; Installing Water efficient dishwashers; Installing water efficient shower heads and faucets in all kitchens and bathrooms; Utilizing recycled water for landscaping; Installing high efficiency irrigation systems; Utilizing native and drought-tolerant plant species in landscaping palettes. With adequate water supply available to SFWPA and the water conservation features and recycled water system proposed in the Specific Plan, impacts related to water supply would be less than significant. Mitigation Measures. As discussed above, the SFWPA water facilities would have more than adequate surplus of water supply for both Phase I and full buildout of the proposed Specific Plan. No mitigation is required. Significance After Mitigation. Impacts to water supply would be less than significant without mitigation. Impact UTL-2 The proposed project would generate an estimated 599,200 gallons of wastewater per day, which would flow to the SC-OR WWTP. At its current capacity, SC-OR has sufficient capacity to accommodate this increase in wastewater and local conveyance for Rio d Oro at full buildout in Therefore, this impact is considered less than significant. The proposed Specific Plan will introduce a maximum of 2,700 residential units and 35.7 gross acres of non-residential and commercial development by The uses onsite including residential, commercial, public facilities, and recreation would increase demand for wastewater treatment. As proposed, the Specific Plan would include development of infrastructure (including pipelines and pumping stations) to connect the site with the existing LOAPUD conveyance pipelines and the SC-OR treatment facility located in the City of Oroville. As described above in the Setting, the SC-OR facility has a current capacity of 6.5 million gallons per day (MGD) and current dry weather wastewater flows to the site are approximately 3.2 MGD, leaving a surplus capacity of approximately 3.3 MGD under average dry weather flow (LOAPUD 2013). SC-OR has an excess capacity of 2.7 MGD based on EDU calculations. To estimate the amount wastewater that would be generated by the proposed Specific Plan, for the purpose of this calculation, residential units are considered equivalent to EDU. The

11 wastewater generation factors (average dry-weather flow) utilize LOAPUD factors and are as follows (using rates from LOAPUD SOI update 2013): Residential: 210 gallons per day/equivalent dwelling unit Commercial/Industrial: 600 gallons per day/gross acre. For the proposed Specific Plan, under Phase I of the project, as shown in Table with a buildout of approximately 200 residential units by the year 2017, the increase of wastewater would be 42,000 gallons per day (or approximately MGD); and thus, would not exceed the remaining capacity of 3.3 MGD at the SC-OR facility. Further, also shown in Table , at full buildout by the year 2035 (including up to 2,700 residential units and approximately 53.7 acres of non-residential development) the proposed Specific Plan would result in an increase of approximately 599,200 GPD, or about 0.6 million gallons per day (MGD). In addition to wastewater flows from residential and commercial uses, it is anticipated that at full build out, effluent from the advanced wastewater treatment system would be diverted back to SC-OR for treatment. It is estimated that up to 5% (5,000 GPD assuming 1 MGD is removed from the outfall) of the volume removed from the SC-OR outfall would be returned to SC-OR. This would increase the total volume generated by the project to 0.65 GPD. This amount added to the current wastewater flows in the area served by the SC-OR of 3.2 MGD would total approximately 3.85 MGD; 4.48 MGD when using EDU rates. Thus, even with full buildout of the proposed Specific Plan, the wastewater generated by the project would not exceed the capacity of the SC-OR facility. Therefore, the impact associated with the proposed Specific Plan on wastewater treatment would be less than significant. Year Land Use Quantity Table Projected Wastewater Generated Sewer Demand Generation Factor Projected Daily Flow (Gallons Per Day) Projected Daily Flow (Million Gallons Per Day) Phase I 2017 Residential 200 units (EDU) 210 GPD/EDU 42, Full Buildout 2035 Residential 2035 Non-residential and Commercial 2,700 units (EDU) 53.7 gross acres Source: Generation rates from the LOAPUD Sphere of Influence EIR, GPD/EDU 567, GPD/ gross acre 32, Total Mitigation Measures. As discussed above, the SC-OR facility would have adequate capacity to accept wastewater generated by both Phase I and full buildout of the proposed Specific Plan. No mitigation is required. Significance After Mitigation. Impacts to wastewater treatment would be less than significant without mitigation

12 Impact UTL-3 The proposed project would generate an estimated 18 tons of solid waste per day. This is within the capacity of solid waste disposal facilities serving Butte County. Therefore, this impact is considered Class III, less than significant. The proposed Specific Plan would provide development of up to 2,700 residential units and commercial and public facility uses that would provide up to 625 employees. The increase in the number of residences and employees associated with the Specific Plan would directly increase the amount of solid waste generated at the site. Using solid waste generation factors from the State of California s CalRecycle, it is anticipated that solid waste would be increased as follows: Residential: pounds (lbs) per household per day Commercial/Public Facility: pounds (lbs.) per employee per day Table shows the estimated solid waste that would be generated by the project under both Phase I (200 units developed) and full buildout of the proposed Specific Plan. Under Phase I, the project would generate approximately 2,446 pounds per day (approximately 1.22 tons per day). Under full buildout in the year 2035, the proposed project would generate an estimated 42,048 pounds, or 21 tons of solid waste per day.. The Neal Road Recycling and Waste Facility, has a maximum permitted throughput of 1,500 tons per day, and the estimated current daily average throughput is 500 tons per day. The remaining capacity is approximately 1,000 tons per day). As discussed in Section 4.7, Greenhouse Gas and Climate Change, the project would implement a recycling program to reduce solid waste entering the landfill by 50%. Thus, the amount of solid waste entering the landfill in 2017 would be reduced to approximately 0.6 tons per day and 11.5 tons per day at full build out in The Neal Road Recycling and Waste Facility, would have adequate capacity to accommodate solid waste generated by the project. Therefore, the waste generated by the proposed project (under both Phase I and full buildout) would not adversely affect solid waste disposal facilities and impacts related to solid waste disposal facilities would be less than significant. Phase I Year Land Use Quantity 2017 Residential 200 units Full Buildout 2035 Residential 2,700 units 2035 Employees 625 Source: Generation Rates from CalRecycle, Accessed April Table Projected Solid Waste Generation Solid Waste Generation Factor lbs/ household/ day lbs/ household/ day lbs/ employee/ day Projected Solid Waste (pounds per day) Projected Cumulative Solid Waste (tons per day) 2, , , Total Mitigation Measures. As discussed above, landfills would have adequate capacity to accept solid waste from full buildout of the proposed Specific Plan. No mitigation is required

13 Significance After Mitigation. Impacts to solid waste disposal would be less than significant without mitigation. c. Cumulative Impacts. Water. As discussed above, the proposed project would not result in a project impact on water supply or water infrastructure. Similarly, the SB610 WSA completed for the project, determined that the SFWPA has adequate supply to accommodate the water demands of existing customers in addition to the proposed project plus other growth in the service area. Thus cumulative impacts, like project impacts would also be considered to be less than significant. While the project has not been determined to have either a project specific or cumulative impact on water supply, there is the potential that due to uncertainties, the Rio D Oro Specific Plan area could face water shortages. Therefore the demand for potable domestic water will be reduced by implementing water conservation techniques. These measures help to illustrate the flexibility in programs that the County has to avoid environmental impacts associated with future water supply and demand issues. Measures that are a part of the proposed Specific Plan that would further ensure adequate water supplies are available in the region include: Installing high efficiency toilets (dual flush) in all new homes, commercial uses, and schools. Installing Water efficient dishwashers. Installing water efficient shower heads and faucets in all kitchens and bathrooms. Utilizing recycled water for landscaping. Installing high efficiency irrigation systems. Utilizing native and drought-tolerant plant species in landscaping palettes. Wastewater. As indicated above, while the proposed Specific Plan would not exceed remaining capacity currently available at the SC-OR facility, LOAPUD has indicated that the SC- OR facility will require improvements to accommodate projected growth within the service area (including growth associated with the proposed project) (LOAPUD SOI EIR, 2013). As noted, SC- OR will need to accommodate 32,179 EDUs by The timing of construction would be based in part on proposed service connections and the availability of funding. Further, construction of wastewater pipelines between the project site and existing LOAPUD infrastructure may facilitate development along the pipeline routes. The only mitigation for this cumulative impact would be for SC-OR to seek an expansion of its permitted wastewater treatment capacity which would most likely require an expansion of existing SC-OR facilities. Based on the likelihood that an expansion of the SC-OR facility would be required and that there is a potential for the improvements to cause or contribute to direct, indirect and/or cumulative environmental impacts, this impact is considered cumulatively significant. Solid Waste. Growth within and around Butte County would contribute to an increase in the need for solid waste disposal service. The Neal Road Facility currently has a remaining capacity of approximately 1,000 pounds per day. As a result, it can be concluded that there would be adequate capacity to support additional growth in the region. In addition, the County s General Plan 2030 included Policy PUB-P9.5, which requires the Neal Road Facility to prioritize waste materials from Butte County and only accept waste materials from outside the county if there is landfill capacity available (Butte County 2010)

14 As discussed under Impact UTL-3, the proposed Specific Plan will generate solid waste in phases, and its cumulative projected solid waste of 18 tons per day under buildout is within the Neal Road Facility s estimated remaining daily throughput of 1,000 tons per day. Combined with efforts and actions that will be taken to divert solid waste from landfills, the cumulative impact to solid waste is deemed less than significant