
San Diego County, California | Municipal Water Utility Company | Public Service Announcement
The regional water supply in Olivenhain Municipal Water District may contain several concerning pollutants including Hexachlorobenzene (HCB), Bromomethane and Pentachlorophenol, while also experiencing significant water hardness issues. Olivenhain Municipal Water District provides this county with water sourced primarily from Surface water reservoirs.
What's in your tap water?
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Olivenhain Municipal Water District Area Details

Area served:
San Diego County, California

Population served:
63624

Water source:
Surface water

Phone:
760-753-6466

Address:
1966 Olivenhain Road, Encinitas, CA 92024

3date
Contaminants Detected In San Diego County, California
Arsenic; Bromodichloromethane; Chloroform; Chromium (hexavalent); Dibromochloromethane; Dichloroacetic acid; Total trihalomethanes (TTHMs); Trichloroa… more

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Olivenhain Municipal Water District
Annual Municipal Water Report
List of Municipal Water Contaminants Tested by Olivenhain Municipal Water District
Tested But Not Detected:
1,1,1,2-Tetrachloroethane; 1,1,1-Trichloroethane; 1,1,2,2-Tetrachloroethane; 1,1,2-Trichloroethane; 1,1-Dichloroethane; 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; 1,4-Dioxane; 2,2-Dichloropropane; 2,3,7,8-TCDD (Dioxin); 2,4,5-TP (Silvex); 2,4-D; 2,4-Dinitrotoluene; 3-Hydroxycarbofuran; Alachlor (Lasso); Aldicarb; Aldicarb sulfone; Aldicarb sulfoxide; Aldrin; Aluminum; Antimony; Asbestos; Atrazine; Baygon (Propoxur); Bentazon (Basagran); Benzene; Benzo[a]pyrene; Beryllium; Bromacil; Bromate; Bromobenzene; Bromomethane; Butachlor; Cadmium; Caffeine; Carbaryl; Carbofuran; Carbon tetrachloride; Chlordane; Chlorodifluoromethane; Chloroethane; Chloromethane; Chromium (total); cis-1,2-Dichloroethylene; cis-1,3-Dichloropropene; Cobalt; Cyanide; Dalapon; DCPA mono- and di-acid degradates; Di(2-ethylhexyl) adipate; Di(2-ethylhexyl) phthalate; Diazinon (Spectracide); Dibromomethane; Dicamba; Dichlorodifluoromethane; Dichloromethane (methylene chloride); Dieldrin; Dimethoate; Dinoseb; Diquat; Endothall; Endrin; Ethyl tert-butyl ether; Ethylbenzene; Ethylene dibromide; Glyphosate; Heptachlor; Heptachlor epoxide; Hexachlorobenzene (HCB); Hexachlorobutadiene; Hexachlorocyclopentadiene; Isopropyl ether; Isopropylbenzene; Lindane; m- & p-Xylene; m-Dichlorobenzene; Manganese; Mercury (inorganic); Methiocarb; Methomyl; Methoxychlor; Methyl ethyl ketone; Methyl isobutyl ketone; Metolachlor; Metribuzin; Molinate; Monobromoacetic acid; Monochloroacetic acid; Monochlorobenzene (chlorobenzene); MTBE; n-Butylbenzene; n-Propylbenzene; Naphthalene; Nitrate; Nitrate & nitrite; Nitrite; o-Chlorotoluene; o-Dichlorobenzene; o-Xylene; Oxamyl (Vydate); p-Chlorotoluene; p-Dichlorobenzene; p-Isopropyltoluene; Pentachlorophenol; Perchlorate; Perfluorobutane sulfonate (PFBS); Perfluoroheptanoic acid (PFHPA); Perfluorohexane sulfonate (PFHXS); Perfluorononanoic acid (PFNA); Perfluorooctane sulfonate (PFOS); Perfluorooctanoic acid (PFOA); Picloram; Polychlorinated biphenyls (PCBs); Propachlor; Radium-226; sec-Butylbenzene; Selenium; Silver; Simazine; Styrene; tert-Amyl methyl ether; tert-Butyl alcohol; tert-Butylbenzene; Tetrachloroethylene (perchloroethylene); Thallium; Thiobencarb; Toluene; Toxaphene; trans-1,2-Dichloroethylene; trans-1,3-Dichloropropene; Trichloroethylene; Trichlorofluoromethane; Trichlorotrifluoroethane; Vinyl chloride; Xylenes (total)

What's in your tap water?

Identify which contaminants exceed Legal and Health Guidelines in your water.
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Olivenhain Municipal Water District
About Us
How Do Contaminants Enter Our Water Supply? The sources for tap water (both municipal and bottled) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels across the surface or through the ground, it dissolves naturally occurring minerals and, in some cases, radioactive materials, and can absorb substances from animal or human activities.
Potential contaminants in source water include:
- Microbial contaminants, such as viruses and bacteria, which may originate from wastewater treatment facilities, septic systems, agricultural operations, and wildlife
- Inorganic contaminants, like salts and metals, which can occur naturally or result from urban stormwater runoff, industrial or domestic wastewater discharges, oil and gas production, mining, or farming
- Pesticides and herbicides, which may come from various sources including agriculture, urban stormwater runoff, and residential uses
- Organic chemical contaminants, including synthetic and volatile organic compounds, which are byproducts of industrial processes and petroleum production, and can also come from gas stations, urban stormwater runoff, agricultural applications and septic systems
- Radioactive contaminants, which can occur naturally or result from oil and gas production and mining activities
To ensure tap water safety, the Environmental Protection Agency and the California State Water Resources Control Board prescribe regulations limiting the amount of certain contaminants in water provided by public systems. SWRCB regulations also establish similar limits for bottled water to provide equivalent public health protection.
Regarding Lead and Copper: There has been significant concern about lead levels in municipal water supplies following the Flint, Michigan situation. OMWD conducts mandatory testing every 3 years for lead and copper. The most recent testing in 2016 included 31 locations, with results well below regulatory action levels (see page 5 of the report). Information about lead and copper is available at www.olivenhain.com/lead and copper or through the USEPA Safe Drinking Water Hotline at 800-426-4791.
In compliance with California's SWRCB Water Permit Amendment 2017PA-SCHOOLS and Assembly Bill 746 (2017), OMWD conducted lead assessments at seven school sites in 2017. The action level of 15 ppb was not exceeded at any location. School lead testing results are available by contacting California's Division of Drinking Water at DDW-PLU@waterboards.ca.gov or 916-322-9602.

For more information on your municipal water, visit the U.S. Environmental Protection Agency:
Olivenhain Municipal Water District Municipal Water Company and EPAOlivenhain Municipal Water District Water Report Information
The Heritage of the Region: The area currently served by OMWD was originally home to three distinct Native American societies: the San Dieguito, La Jollan and Diegueño. Each group existed during different periods and had unique characteristics that distinguished them from one another.
In the mid-1800s, the area now defined as Olivenhain was part of Mexico's territory. The Mexican government granted Rancho Los Encinitos to Andreas Ybarra in 1842, who constructed an adobe residence, remains of which are still visible near Stagecoach Park in Carlsbad.
The community of Olivenhain began in 1884 when 25 German immigrant families settled on a tract of land called Rancho Las Encinitas. This small community of 67 pioneers established the settlement that became OMWD's namesake. "Olivenhain" is of German origin meaning "olive grove" and is pronounced Oh-Lee-Ven-Hine. Some current residents of the area can trace their ancestry to these original settlers.
The gradual decline of agricultural activity during the 1950s combined with the importation of water to Southern California gradually transformed the Olivenhain area from farmland into the residential community it is today.
Municipal Water Utility Company FAQ

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Olivenhain Municipal Water District Municipal Water Company and CDC.. ...

Olivenhain Municipal Water District provides municipal water services to residents of Encinitas and San Diego County, California.
Limited Time: Free Water Safety Report for Olivenhain Municipal Water District.

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