
Norwalk, California | Municipal Water Utility Company | Public Service Announcement
Residents receiving water from Norwalk Water Department may be exposed to several concerning contaminants including Manganese, Strontium, Chlordane and DCPA di-acid degradate, and may experience notably elevated water hardness levels. Norwalk Water Department provides municipal water to this region, sourcing from purchased surface water supplies.
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Norwalk Water Department Area Details

Area served:
Norwalk, California

Population served:
18751

Water source:
Purchased surface water

Phone:
562-929-5700

Address:
12700 Norwalk Boulevard, Norwalk, CA 90650

3date
Contaminants Detected In Norwalk, California
1,4-Dioxane; Arsenic; Bromodichloromethane; Chloroform; Chromium (hexavalent); Dibromochloromethane; Dichloroacetic acid; Tetrachloroethylene (perchlo… more

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Norwalk Water Department
Annual Municipal Water Report
List of Municipal Water Contaminants Tested by Norwalk Water Department
Tested But Not Detected:
1,1,1,2-Tetrachloroethane; 1,1,1-Trichloroethane; 1,1,2,2-Tetrachloroethane; 1,1,2-Trichloroethane; 1,1-Dichloroethylene; 1,1-Dichloropropene; 1,2,3-Trichlorobenzene; 1,2,3-Trichloropropane; 1,2,4-Trichlorobenzene; 1,2,4-Trimethylbenzene; 1,2-Dibromo-3-chloropropane (DBCP); 1,2-Dichloroethane; 1,2-Dichloropropane; 1,3,5-Trimethylbenzene; 1,3-Butadiene; 1,3-Dichloropropane; 1,3-Dichloropropene; 2,2-Dichloropropane; 2,3,7,8-TCDD (Dioxin); 2,4,5-T; 2,4,5-TP (Silvex); 2,4-D; 2,4-DB; 2-Chloroethylvinyl ether; 3-Hydroxycarbofuran; 4,4'-dde; Acifluorfen (Blazer); Alachlor (Lasso); Aldicarb; Aldicarb sulfone; Aldicarb sulfoxide; Aldrin; alpha-Lindane; Aluminum; Antimony; Asbestos; Atrazine; Baygon (Propoxur); Bentazon (Basagran); Benzene; Benzo[a]pyrene; Beryllium; beta-BHC; Bromacil; Bromobenzene; Butachlor; Cadmium; Captan; Carbaryl; Carbofuran; Carbon tetrachloride; Carbophenothion; Chlordane; Chloroethane; Chlorothalonil (Bravo); Chlorpropham; cis-1,2-Dichloroethylene; cis-1,3-Dichloropropene; Cyanazine (Bladex); Cyanide; Dalapon; DCPA mono- and di-acid degradates; delta-BHC; Di(2-ethylhexyl) adipate; Di(2-ethylhexyl) phthalate; Diazinon (Spectracide); Dibromomethane; Dicamba; Dichlorodifluoromethane; Dichloromethane (methylene chloride); Dichlorprop; Dieldrin; Dimethoate; Dinoseb; Diphenamide; Diquat; Disulfoton; Endosulfan I; Endosulfan II; Endosulfan sulfate; Endothall; Endrin; Endrin aldehyde; EPTC (Eptam); Ethyl tert-butyl ether; Ethylbenzene; Ethylene dibromide; Glyphosate; Heptachlor; Heptachlor epoxide; Hexachlorobenzene (HCB); Hexachlorobutadiene; Hexachlorocyclopentadiene; Isopropyl ether; Isopropylbenzene; Lindane; m- & p-Xylene; m-Dichlorobenzene; Mercury (inorganic); Methiocarb; Methomyl; Methoxychlor; Methyl ethyl ketone; Methyl isobutyl ketone; Metolachlor; Metribuzin; Molinate; Monobromoacetic acid; Monochloroacetic acid; Monochlorobenzene (chlorobenzene); MTBE; n-Butylbenzene; N-Nitrosodimethylamine (NDMA); n-Propylbenzene; Naphthalene; Nitrate & nitrite; Nitrite; o-Chlorotoluene; o-Dichlorobenzene; o-Xylene; Oxamyl (Vydate); p-Chlorotoluene; p-Dichlorobenzene; p-Isopropyltoluene; Para-para DDT; Paraquat; Pentachlorophenol; Perchlorate; Perfluorobutane sulfonate (PFBS); Perfluoroheptanoic acid (PFHPA); Perfluorohexane sulfonate (PFHXS); Perfluorononanoic acid (PFNA); Perfluorooctane sulfonate (PFOS); Perfluorooctanoic acid (PFOA); Picloram; Polychlorinated biphenyls (PCBs); Prometon; Prometryn; Propachlor; sec-Butylbenzene; Selenium; Silver; Simazine; Styrene; Terbacil; tert-Amyl methyl ether; tert-Butylbenzene; Thallium; Thiobencarb; Toluene; Toxaphene; trans-1,2-Dichloroethylene; trans-1,3-Dichloropropene; Trichlorofluoromethane; Trichlorotrifluoroethane; Trifluralin; Vinyl chloride; Xylenes (total)

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Norwalk Water Department
About Us
While we monitor for over 100 substances, regulations only require reporting those detected in your water. The first column of our water quality table lists substances found in your supply. The second column shows average concentration and range detected. The next columns display the MCL and PNG or MCLG where applicable. The final column identifies likely sources of these substances in municipal water.
To evaluate your water quality, compare the highest concentration with the MCL, looking for substances exceeding this limit. Exceeding primary MCLs doesn't necessarily indicate an immediate health threat but requires more frequent source water testing. If tests consistently show MCL exceedances, the water must be treated or the source removed from service.
Why is there so much media coverage about tap water quality? Water sources (both tap and bottled) include rivers, lakes, streams, ponds, reservoirs, springs and wells. As water travels across land or underground, it dissolves naturally-occurring minerals and sometimes radioactive materials, and can pick up substances from animal presence or human activity.
Potential source water contaminants include:
- Microbial contaminants such as viruses and bacteria from sewage treatment facilities, septic systems, agricultural operations, and wildlife
- Inorganic contaminants like salts and metals occurring naturally or resulting from urban runoff, industrial discharges, oil/gas production, mining, or farming
- Pesticides and herbicides from agriculture, urban stormwater runoff, and residential uses
- Organic chemical contaminants including synthetic and volatile organic compounds from industrial processes, petroleum production, gas stations, urban runoff, and septic systems

For more information on your municipal water, visit the U.S. Environmental Protection Agency:
Norwalk Water Department Municipal Water Company and EPANorwalk Water Department Municipal Water Report Info
Historically recognized by its iconic water tower, Norwalk ranks as the 14th most populated city in Los Angeles County, 58th in California, and 255th nationally. The city is governed by a five-member City Council that functions as the primary policy-making body. Regular Council Meetings occur on the first and third Tuesday monthly at 6:00 p.m. in Council Chambers at Norwalk City Hall, 12700 Norwalk Blvd.
Norwalk shares boundaries with Downey to the northwest, Bellflower to the southwest, Cerritos and Artesia to the south, and Santa Fe Springs to the north and east.
Municipal Water Utility Company FAQ

For more information on your municipal water, visit the U.S. CDC:
Norwalk Water Department Municipal Water Company and CDC.. ...

Norwalk Water Department provides municipal water services to the residents of Norwalk and surrounding areas in California.
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