In 1999, potentially responsible parties led more cleanup activities. This business employed 5 people and generated an estimated $960,000 in annual sales revenue. It is an ingredient in rocket fuel, fireworks, safety flares, and other products, may be present in some fertilizers, and also occurs naturally at low concentrations in groundwater. Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window). The City of Sacramento plans to add more picnic areas.Last updated August 2021, The 33-acre Lava Cap Mine is a former gold mine in the Sierra foothills outside of Nevada City, California. The solar panels also reduce the companys carbon footprint. The basin also includes four scattered agricultural areas. Efforts to evaluate and address vapor intrusion in buildings over the plume are also underway. For more information: The 22-acre Fairchild Semiconductor Corp. South San Jose Plant (Fairchild) Superfund site is in San Jose, California. Australia Operators handled perchlorate salts and other hazardous chemicals and disposed of chemical wastes on site. U.S. Environmental Protection Agency, 2009, San Fernando Valley superfund sites update, and EPA selects second interim remedy for the North Hollywood operable unit, 12 p. Available at http://yosemite.epa.gov/r9/sfund/r9sfdocw.nsf/vwsoalphabetic/. . The $460-million projects will remove existing industrial contaminants that date back to the 1940s and provide a critical, local source of clean drinking water for the Los Angeles region. Structural work throughout the site has commenced. Facility operations contaminated soil and groundwater with volatile organic compounds, primarily trichloroethylene (TCE). A wood-treating company operated at the 18-acre area from 1936 to 1981. Senior Principal, Senior Process Engineer. EPA added the site to the National Priorities List (NPL) in 1990. Last updated August 2021. A lock () or https:// means youve safely connected to the .gov website. We plan, design, build, and maintain modern infrastructure that uplifts all communities of Los Angeles County. These sites include areas of contaminated groundwater in the 170 square mile San Gabriel Valley. Property owners routinely inspect and maintain the cap. These businesses employed 398 people and generated an estimated $83,273,490 in annual sales revenue. In 2010, EPA selected a remedy to address the subsurface to indoor air pathway (vapor intrusion) for existing buildings and new buildings within the Vapor Intrusion Study Area. The site was vacant from 1983 to 1998. Operation NEXT - LA's New Water Supply Program In 1988, EPA added the MS area to the NPL listing. L.A. pumps its local groundwater, . Groundwater movement is generally from the northern parts of the valleys south towards the Pacific Ocean. The hauling operation is set to begin on Monday, October 4, 2021. EPA took the site off the NPL in 2002. Nonregulatory benchmarks for protecting aesthetic properties, such as taste and odor (Secondary Maximum Contaminant Level, SMCL), and nonregulatory benchmarks for protecting human health (Notification Level, NL, and Lifetime Health Advisory, HAL) were used when Federal or California regulatory benchmarks were not available. EPA added the site to the National Priorities List (NPL) in 1983. It includes shops, a grocery market, restaurants, a postal annex and a paved parking lot. The San Fernando-San Gabriel study unit is approximately 460 square miles and consists . As far as our own supply, we just do our part by making sure we dont overuse water that we get from the Sylmar basin so that were not put in that situation, Baumgardner said. The America Center includes office buildings, a hotel, basketball and volleyball courts, open space, and access to hiking trails.Last updated August 2021. The operations also resulted in releases of contaminants into the soil. 4165 Spruance Road, Suite 200 Location of groundwater basin boundaries from California Department of Water Resources (CDWR . The Area 2 site (also known as the Baldwin Park Operable Unit) includes groundwater contamination under parts of the cities of Azusa, Irwindale, Baldwin Park, West Covina, La Puente and Industry. Perchlorate was detected at high concentrations in about 11% of the primary aquifers, and at moderate concentrations in 12%. About 8.6 acres of the site were purchased in 2013 for use as office and commercial space. Construction will involve excavating the ground and installing precast concrete storage structures. Several commercial and industrial businesses are located on site, including a roller derby practice rink. Monitoring is ongoing.Last updated August 2021. PDF U.S. Geological Survey and the California State Water Resources Control A .gov website belongs to an official government organization in the United States. Site investigations, which began in 1982, found volatile organic compounds (VOCs) in soil and groundwater. The end goal is protecting local water bodies like the Pacoima Wash and Los Angeles River from impurities, and also supporting groundwater recharge for the San Fernando Valley Groundwater Basin. TRW and its corporate successor, Northrup Grumman Systems Corporation (Northrup Grumman), removed soil contamination and treated contaminated groundwater. EPA also oversees the design and construction of enhancements to one of the systems in the El Monte OU due to changing site conditions. Cleanup, monitoring and sampling activities are ongoing. For additional information click here. For more information: The 1-acre Del Norte Pesticide Storage Superfund site is just north of Crescent City, California. In 2001, the City redeveloped part of the site into the Fresno Regional Sports Complex. In 1993, a fire destroyed the plant. By doing so, the local water supply would be improved, according to project and city officials. Public-supply wells are typically drilled to depths of 400 to 785 feet, consist of solid casing from the land surface to a depth of about 157 to 300 feet, and are perforated below the solid casing. Cleanup included excavation and removal of remaining drums and contaminated soils, capping of the property, and groundwater treatment and monitoring. Monk cate Res West Fork san Gabriel River Cogsweli Res SAN GA Santa Anita Res Sawp. The contact(s) in the profile will receive RFP notification(s). The facility emptied, cleaned, resealed, repainted and resold the used drums. In 2004, EPA began studying chromium contamination at the site. Commercial and residential areas of the site remain in continued use. Under the California Environmental Quality Act (CEQA), a study was conducted to investigate the impacts the project would have on the environment. Installation of tubular perimeter fencing. To date, investigators have found soil contamination at approximately 150 facilities. 2014: CASGEM basin prioritization medium. EPA is conducting a vapor intrusion assessment from groundwater across Area 2. NDMA, a semi-volatile organic chemical, is of special interest in California because it has recently been detected in drinking-water supplies. In 1989, EPA added the site to the National Priorities List (NPL). Trace and minor elements are naturally present in the minerals in rocks and soils and in the water that comes into contact with those materials. July 30, 2020. They require ongoing vapor intrusion sampling and mitigation in all commercial buildings on site and adjacent residences. Investigations and studies to identify the sources of contamination continue. EPA put a fence around the perimeter and deed restrictions on residential use of the site. Kiewit-Stantec design-build team moving forward on critical LADWP Stormwater Capture Project Opens In Pacoima | KFI AM 640 Sign up here:https://app.buildingconnected.com/create-account. Contaminated soil was found during the tank removal. San Fernando should feel good about what its doing, Baumgardner said. In 2007, a developer purchased the Intersil property and constructed an office building. The results found no evidence of unacceptable vapor intrusion in the buildings. In 2011, EPA required that CTS Printex take additional action to clean up groundwater contamination and prevent chemicals from entering indoor air in buildings above contaminated groundwater. EPA, in conjunction with the city of Maywood, redeveloped an additional part of the site as part of the park. A groundwater plume contaminated with VOCs, including TCE, extends more than a mile north from the Signetics site. Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law. Currently, the spreading grounds' percolation rate is reduced due to a low permeable clay layer underlying the spreading basins. This business employed 6 people and generated an estimated $427,640 in annual sales revenue. In 1984, EPA added the four main areas of valley groundwater contamination to National Priorities List (NPL). Baxter & Co. and Roseburg Forest Products own the site. Parr Canal is not in use. More intensive gold and silver mining took place during the second period, with an average of 300 to 400 tons of ore processed per day. Our project plan includes a 15%SBE/DVBEutilizationrequirementover the term of the contract. 1150 San Fernando Road Suite 100 San Gabriel-San Fernando Basins Groundwater Resources Used for Public Supply, Go Cities in Area 3 include Alhambra, Rosemead, San Gabriel, San Marino, South Pasadena and Temple City. Louisiana-Pacific Corporation has since closed. The largest urban areas are Los Angeles, San Fernando, Northridge, Burbank, Pasadena, Alhambra, Azusa, and West Covina. These businesses employed 43 people and generated an estimated $5,289,180 in annual sales revenue. EPA added the site to the National Priorities List (NPL) in 1999. Applied Materials installed a system to pump and treat contaminated groundwater in 1984. Groundwater monitoring is ongoing. The goal is to prevent further contaminant movement. As of October 2022, EPA had data on one on-site business. Groundwater Quality in the San Fernando-San Gabriel Groundwater Basins, California Groundwater provides more than 40 percent of California's drinking water. Groundwater quality in the San Fernando--San Gabriel groundwater basins The improper handling of waste contaminated soils, groundwater and a nearby creek. By 1983, an area of groundwater contamination extended 1.5 miles south. SFV Area 3 is located in a basin that is hydrologically separate from the other sites. The site covers about 20 square miles and includes the areas of North Hollywood and Burbank. Today, U.S. Interstate 5 covers 7 acres of the site. PDF Map: 1,4-dioxane contamination in groundwater, Eastern San Fernando For additional information click here. The first phase of the redevelopments construction began in 2020. Company is an Equal Opportunity Employer. Youre exactly whats needed to help us make it happen in your community. For additional information click here. Cleanup has included waste pit capping, removal of contaminated vapors from soil beneath the waste pits, and removal of contaminated soils. EPA found hazardous chemicals in soil and groundwater. Contamination of area groundwater resulted from a range of industrial operations. Two years later, STC found that an underground waste storage tank of organic solvents had failed, resulting in soil and groundwater contamination. The site includes a commercial dry-cleaning business and other nearby commercial and residential areas located above contaminated groundwater. Operations at the Watkins-Johnson facility contaminated the Santa Margarita Aquifer, a major source of groundwater in the area. Bulk petroleum distribution and shipping take place at the site. The Selma Pressure Treating Company Superfund site is in Selma, California. Insecticides were not detected at high or moderate concentrations. The study unit has hot, dry summers and cool, moist winters. The park itself was flooded, rain soaking the baseball field and the recreation area. For additional information click here. The project only affects the San Fernando basin, which San Fernando residents do not get their water from. For additional information click here. The system is expected to operate indefinitely. For more information: The 9-acre Jibboom Junkyard Superfund site (site) is in Sacramento, California. For additional information click here. Middle East The site is now located entirely within the boundaries of the golf course. These businesses employed 77 people and generated an estimated $37,883,333 in annual sales revenue. The site covers about 10 square miles. Existing structures are undergoing demolition. Located in Californias hydrologic region, the San Fernando Valley is 144,837 acres in size. Operators released contaminated waste and rinse water into an unlined basin. HP made optoelectronic equipment at the 10-acre area from 1962 to 1986. As it stands, local groundwater comprises about 11% of the citys total water supply even more more in times of drought. A facility recycled drums on the site from 1947 to 1987. The first approach uses a network of wells to statistically assess the status of groundwater quality. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State's groundwater quality and increases public access to groundwater-quality information. For additional information click here. Aerojet ended operations on the site in 2019. Natural lands are mostly shrublands and grasslands. The second period ran from 1934 to 1943. In addition to gold and silver, ore contained naturally occurring arsenic and trace amounts of heavy metals, such as lead. Cleanup activities included soil removal and off-site disposal and treatment of chemical vapors. .- The modeling program described in this scope of work is designed to providethe numerical tools needed to evaluate the occurrence, movement, andsources of groundwater contamination in the San Fernando Basin. The six solvents that were detected at high concentrations also were frequently detected. Four basins in the San Fernando Valley area contain substantial deep groundwater reserves and are recharged mainly through runoff and infiltration although the increase in impermeable surfaces has decreased infiltration. 1,1-Dichloroethane, carbon tetrachloride, and cis-1,2-dichloroethene were detected in more than 30%, and 1,1,1-trichloroethane was detected in more than 10% of the grid wells sampled. For more information: The 4-acre Pemaco Maywood Superfund site is located along the Los Angeles River in Maywood, California. Ralph Gray abandoned the disposal pits in the late 1930s. The largest urban areas are Los Angeles, San Fernando, Northridge, Burbank, Pasadena, Alhambra, Azusa, and West Covina. EPA added the site to the National Priorities List (NPL) in 1990. High and moderate concentrations generally occur as a result of human activities, such as applying fertilizer to crops. Sampling detected no evidence of unacceptable vapor intrusion in the residential buildings evaluated over the downgradient plume. The site includes a mix of residential, commercial, recreational, and ecological land uses. EPA added the site to the National Priorities List (NPL) in 1990. A strip of commercial development is present along Foothill Boulevard. In 1988, EPA removed hazardous liquids and contaminated soils from the site. For additional information click here. EPA completed the first phase of soil and groundwater cleanup using underground thermal heating in 2017. As a result, LADWPs restored operation of Rinaldi-Toluca Well Field will support utilizing its annual water rights and its goals to reduce dependence on imported water and protect public health. The San Fernando Valley groundwater basin provides drinking water to residents of the cities of Los Angeles, Burbank and Glendale. In 1987, MMI merged with Advanced Micro Devices (AMD). The valleys have been filled, up to 6,400 feet, with marine and terrestrial sediments of Pleistocene through Holocene age that overlie crystaline basement. The PBP includes chemical analyses generally not available as part of regulatory compliance monitoring, including measurements at concentrations much lower than human-health benchmarks, and measurement of constituents that can be used to trace the sources and movement of groundwater. LRTC currently runs a marine shipping terminal at the former United Heckathorn facility. Cleanup facilitated the sites reuse. VOCs, which include solvents, organic synthesis reagents, and trihalomethanes, are in many household, commercial, industrial, and agricultural products and are characterized by their tendency to volatilize (evaporate) into the air. SFV Area 4 covers about 5,860 acres near the Pollock Well Field in Los Angeles. This area is located over part of the TCE groundwater plume. These businesses employed 1,121 people and generated an estimated $124,310,085 in annual sales revenue. 6000 J Street, Placer Hall Perchlorate is an inorganic constituent which has been regulated in California drinking water since 2007. USGS Fact Sheet 2011-3139: Groundwater Quality in the San Fernando-San Site investigations found two main sources of contamination the IM facilitys underground waste-solvent storage tank and the MS chemical storage area. The San Fernando Basin, the largest of the four basins, consists of 112,000 acres and comprises 91.2 percent of the total valley fill in ULARA. Aerojet built a solar facility on site in 2009 and 2010. In 2006, a developer bought the location of the former CTS Printex facility. SFV Area 3 is one of four San Fernando Valley Superfund sites that EPA added to the National Priorities List (NPL) in 1986. The primary sources of discharge are water pumped for municipal supply and for irrigation. Several small commercial businesses are also located in the building.Last updated August 2021. The neighborhood north of the Signetics source area where groundwater contamination is located, referred to as the Offsite OU, includes more than 1,000 households and four schools. As of October 2022, EPA had data on one on-site business. Cleanup and restoration contractors razed and reconstructed several houses built directly above waste deposits. The second approach combines water-quality, hydrologic, geographic, and other data to help assess the factors that affect water quality. From 1998 to 2000, developers built Bernal Plaza shopping center at the site. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The San Fernando Valley Basin consists of four groundwater sub-basins: the San Fernando, Sylmar, Verdugo, and Eagle Rock basins. From 1942 to 1946, oil companies dumped refinery waste into 12 on-site pits. AMD removed contaminated soil and a 4,700-gallon underground acid neutralization system. For more information: The Louisiana-Pacific Corp. site is in Oroville, California. Cleanup includes the operation of five large groundwater pump-and-treat systems. As of October 2022, EPA had data on 6 on-site businesses. As of October 2022, EPA had data on 16 on-site businesses. EPA took the site off the NPL in 2005.Last updated August 2021. Vapor intrusion assessments at one building found unacceptable vapor intrusion occurring through restroom floor drains and plumbing. "LADWP is committed to remediating groundwater in the San Fernando Basin," said LADWP General Manager David H. Wright. Releases of pesticides and other chemicals contaminated the upland and marine areas. This agreement will help to expedite the cleanup of the underlying groundwater contamination from the Signetics site that limits the effectiveness of cleanup efforts at the AMD site, address vapor risks to the community, and help restore groundwater quality in the region. For more information: The Signetics, Inc. (Signetics, aka Philips Semiconductors) site in Sunnyvale, California, covers about 20 acres. In the rivers, youll be able to see a big improvement with less trash and less pollutants and less water in general.. Groundwater treatment and monitoring are ongoing in Santa Clara and Sunnyvale. High-voltage power transmission lines owned by the Los Angeles Department of Water and Power run through the site property.Last updated August 2021. The city of Maywood and The Trust for Public Land incorporated the site into a community park as part of the Los Angeles River Greenway project. However, the San Fernando Valley Groundwater Basin (SFB) is 226 square miles (585 square kilometres) of potentially accessible, nearby groundwater. Solvents were present at moderate concentrations in about 40% of the primary aquifers. This project is subject to and requires compliance with LADWPs Project Labor Agreement. Select your region to visit a Stantec regional site, or visit our Locations Hub on our Global site where you can learn more about Stantec in your local area. In 2001, EPA signed a Prospective Purchaser Agreement with a company interested in buying part of the site. In 2010, EPA selected a remedy to address the subsurface to indoor air pathway (vapor intrusion) for existing buildings and new buildings within the Vapor Intrusion Study Area. From the 1960s to 1980s, several facilities, including semiconductor, electronics manufacturing, and metal finishing companies operated in the MEW area. State Water Resources Control Board The primary aquifers in the study unit are defined as those parts of the aquifers corresponding to the perforated intervals of wells listed in the California Department of Public Health (CDPH) database. The company, one of the sites potentially responsible parties (PRPs), received notices of violations from the Los Angeles County Department of Health from 1984 to 1988. The estimated $11.2 million project, which began construction on April 4, is being built in the field near the Pacoima Wash. These structurally complex basins formed as a result of the dextral slip of the San Andreas Fault system in the late Tertiary-Quaternary (Tinsley, 2001). As climate change progresses, and theres more significant environmental impacts, having additional local water sources will be beneficial.. Refer to the July 28, 2021 Community Meeting Presentation under the Community Engagement Section for information on the haul routes. Under the oversight of EPA and the State of California Regional Water Quality Control Board (San Francisco Bay Region), Honeywell did vapor intrusion assessments in 2013 and 2014 at the two commercial buildings next to the groundwater contamination area. Groundwater basins in the San Gabriel Valley are not separated into distinct aquifers other than near the Whittier Narrows. Some constituents affect the aesthetic properties of water, such as taste, color, and odor, or may create nuisance problems, such as staining and scaling. In 2005, the Burbank Airport Commerce Center was built on site; it includes commercial and light industrial uses. EPA took the site off the NPL in 2004.Last updated August 2021, The San Fernando Valley (Area 4) Superfund site (SFV Area 4) is one of four Superfund sites in Californias San Fernando Valley. After repeated complaints from residents when black sludge and seep material appeared in their yards, EPA added the site to the National Priorities List (NPL) in 1992. With EPA oversight, Emhart Industries completed the construction of the first of two groundwater cleanup projects in 2021. In 1995, PG&E and the California Department of Transportation found contaminants in the soil, soil gas and groundwater near the site. Mitigation measures then included source remediation and a sub-slab passive venting system. The systems help ensure an adequate supply of clean water to the region. San Fernando Recreation Park and Aquatic Center - Parks & Recreation EPA will continue to work with developers and future tenants to make sure site uses remain compatible with the groundwater remedy.Last updated August 2021. The County of Los Angeles Department of Parks and Recreation has a long, proud history which has brought us to where we are today. Benefits to the Community. Samples from the former source area in the parking lot exceeded health-protective screening levels. Routine site operation and maintenance activities are ongoing.Last updated August 2021, The Modesto Ground Water Contamination Superfund site is located about 1.5 miles north of Modesto, California.