Lathrop, CA. FACILITY: City of Lathrop Water Recycling Plant No. 1 LOCATION: MBR MANUFACTURER:

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1 FACILITY: City of Lathrop Water Recycling Plant No. 1 LOCATION: Lathrop, CA GEO. AREA: Northern California STATUS 07/14: Operational CONSTRUCTION: ENGINEERING: MBR MANUFACTURER: Unknown OPERATED BY: FUNDED WITH: Unknown COMMENTS: Design-Build-Operate (DBO) and Operate-Maintain-Manage (O&M) partnership with

City of Lathrop :: Public Works :: Sewer System http://www.ci.lathrop.ca.us/pwd/utilities/sewer.

Works Department Home >> Public Works Departmen Utilities >> Sewer System Please select Sewer System City Manager Economic Development City Attorney City Clerk Human Resources Community Development

2 City of Lathrop :: Public Works :: Sewer System Twitter Jobs City News Announcements Login Contact Us HOME CITY COUNCIL RESIDENT SERVICE VISITING LATHROP FORMS & HANDOUT BUSINESS LISTING I WANT TO CONTACT US Quick Links Lathrop Home >> Public Works Department Home >> Public Works Departmen Utilities >> Sewer System Please select Sewer System City Manager Economic Development City Attorney City Clerk Human Resources Community Development Public Works Department Public Works Home CIP Projects Construction Updates Contact Us Engineering Division Flood Plain Information Frequently Asked Questions Forms & Handouts Operations & Maintenance Solid Waste & Recycling Utilities Finance Parks & Recreation Animal Services Lathrop Police Services Code Enforcement Lathrop-Manteca Fire District The City of Lathrop Maintenance Division provides round the clock sewer maintenance services for our community. Overall, the sewer system consists of the: The Manteca-Lathrop Water Quality Control Facility The Lathrop Water Recycling Plant No. 1 The Collection System The Pump Station System Manteca-Lathrop Water Quality Control Facility (WQCF) The City of Lathrop owns 14.7% of the Manteca-Lathrop WQCF by Contract with the City of Manteca. The City of Lathrop, however, does not participate in the operation of the Plant. Most of the wastewater generated in the areas east of Interstate 5 and north of Louise Avenue is conveyed to the Manteca-Lathrop WQCF. Lathrop Water Recycling Plant (WRP) No. 1 The City of Lathrop owns the WRP No. 1 Plant. All of the wastewater generated in the areas west of Interstate 5 and south of Louise Avenue is conveyed to the WRP No. 1 Plant. The daily operations of the WRP No. 1 Plant is performed by a private contractor, Water NA. The City has a 20 year Agreement with to perform these services. A portion of the Plant treats industrial influent from the Crossroads Industrial Park Subdivision. A newly expanded portion of the plant treats influent from new development west of Interstate 5. Specifically, the newly expanded plant is designed to treat about 0.75 million gallons per day of raw sewage. The treated effluent (recycled water) meets Title 22 for re-use standards. The recycled water is utilized for a variety of purposes including landscape irrigation and farming activities for fodder crops. It is anticipated that the plant will expanded in the future to treat about 10 million gallons per day of raw sewage. The new expansion includes advanced Membrane Bio-Reactor (MBR) technology to produce high quality recycled water to be used to irrigate landscaping, schools and parks and to grow crops on designated land application areas. A new recycled water system consisting of storage ponds, pump stations and distribution system is being constructed in conjunction with the WRP-1 MBR expansion project. Collection System The City Staff maintains many thousands of feet of sewer lines which are cleaned all year long to prevent overflow or spillage. If a problem occurs with a sewer line, the line is evaluated to find the source of the problem. When appropriate, a sewer line will be placed on the "hot spot" list to be cleaned on either a monthly, bi-annual or annual basis. When possible, repairs or design modifications are made so that these "hot spots" can be put on a normal cleaning schedule. Every new sewer line within the City of Lathrop is inspected during construction. The contractor will follow a vigorous inspection program before the City will accept the line, which ensures that the City receives a high quality product. This reduces future maintenance costs. Pump/Lift Station System The City of Lathrop is relatively flat. Therefore, a series of pump stations and lift stations are required to convey the influent to one of the two treatment plants. For the areas of the City east of Interstate 5, the collection system conveys the influent to the O 1 of 2 7/24/14, 3:57 PM

3 City of Lathrop :: Public Works :: Sewer System Street Pump Station which then pumps it to the Manteca-Lathrop WQCF. This pump station is of the utmost importance to the City and, therefore, receives a high level of service and engineering attention. The City currently anticipates an upgrade to the station in For the areas of the City west of Interstate 5, the collection system conveys the influent to the Mossdale Pump Station which then pumps it to the Lathrop WRP No. 1. This pump station is also of high importance to the City and, also has received a high level of engineering attention. This pump station is new and has a long service life. The flow from our pump stations and other information regarding the system is monitored by radio telemetry. Information such as flow, pump run time, power usage, and many other parameters are collected using Supervisory Control and Data Acquisition (SCADA) software. The central SCADA computer monitors the system and, if necessary, can be used to control the pump stations. It also has the ability to page standby personnel during emergency conditions. Utilities Home 2011 The City of Lathrop 390 Towne Centre Dr. - All Rights Reserved. Disclaimer Contact Us 2 of 2 7/24/14, 3:57 PM

4 Lathrop, California North America Presentation Media Case Studies Lathrop, California Lathrop, California Back Water's DBO project approach to municipal wastewater reclamation facilities serves needs of rapidly growing community. Challenge Incorporated in 1991, Lathrop is a relatively new Northern California city that has experienced rapid growth. In fact, the population is expected to quintuple by To meet this projected growth, developers approached Water, which signed a 20-year agreement in 2003 to provide fast-track design and construction services for the city's 0.75-MGD tertiary treatment plant, which went online in Today, Water also provides operate/maintain/manage (O&M) services to an upgraded MGD secondary wastewater treatment plant. We also have responsibility for a Title 22 effluent reuse program and an industrial pretreatment program. Solution Results Add redundant solids handling equipment to ensure efficiency in managing plant biosolids. Provide state-of-the-art components, including an immersed membrane bioreactor, a grit collector system and a biological odor control system. Complete upgrade of the aeration system for existing plant. Assist city in development of a sludge land application program for the beneficial use of biosolids products. Develop O&M manuals to meet state regulatory requirements. Help city update its Industrial Pretreatment Ordnance and implement and administer industrial pretreatment program to protect effluent quality of both wastewater facilities. Install a computerized equipment maintenance program that provides management and tracking for both wastewater plants. Assume responsibility for all regulatory and compliance issues. Reduced number of necessary pumps and significant quantity of piping by relocating aerated digester. Worked since project inception without a lost-time accident. Completed design of next generation of the facility, which will double its capacity. Worked to meet California's Title 22 requirements for effluent reuse. Received 2004 Small-Plant-of-the-Year Award from the Northern San Joaquin Section of the California Water Environment Association. For more information: 1 of 2 7/20/14, 11:38 PM

5 Lathrop, California Lathrop Photos City Website City of Lathrop 2 of 2 7/20/14, 11:38 PM

Irvine Ranch Water District Michelson Water Recycling Plant. Irvine, CA LOCATION: MBR MANUFACTURER: COMMENTS:

FACILITY: Irvine Ranch Water District Michelson Water Recycling Plant LOCATION: Irvine, CA GEO. AREA: Southern California STATUS 07/14: Operational CONSTRUCTION: FILANC ENGINEERING: HDR Engineering MBR