The Water Map

VOCs & pesticides

1,2,3-TCP in U.S. tap water

93 public water systems across 4 U.S. states report 1,2,3-TCP in their annual Consumer Confidence Report. None currently sit at or above the federal limit.

93
systems measuring
0
over the limit
4
states represented

Within the federal limit (48)

Water systemMeasured
Antelope Valley East Kern Water Agency — Palmdale, Ca, CA
2023 annual report
Not detected ug/L
Antelope Valley East Kern Water Agency — Palmdale, Ca, CA
2020 annual report
Not detected ug/L
Antelope Valley East Kern Water Agency — Palmdale, Ca, CA
2022 annual report
Not detected ug/L
Cal/am Water Company - San Marino — Rosemead, Ca, CA
2023 annual report
Not detected %
California State University Fresno — Fresno, Ca, CA
2021 annual report
Not detected
Camp Williams-resort Water — Manhattan Beach, Ca, CA
2020 annual report
Not detected ug/L
Camp Williams-resort Water — Manhattan Beach, Ca, CA
2021 annual report
Not detected ug/L
Carpinteria Valley Water District — Carpinteria, Ca, CA
2023 annual report
Not detected ug/L
Central Ca Womens Facility — Chowchilla, Ca, CA
2023 annual report
Not detected mg/L
City of Los Banos — Los Banos, Ca, CA
2023 annual report
Not detected ng/L
City of Morgan Hill — Morgann Hill, Ca, CA
2023 annual report
0 ug/L
City of South Pasadena — South Pasadena, Ca, CA
2022 annual report
Not detected ug/L
Cleveland, OH
2024 annual report
Not detected
Corcoran, City of — Corcoran, Ca, CA
2023 annual report
Not detected
Cotati, City of — Cotati, Ca, CA
2023 annual report
Not detected ng/L
Covina Irrigating Co. — West Covina, Ca, CA
2023 annual report
Not detected ng/L
Covina Irrigating Co. — West Covina, Ca, CA
2020 annual report
Not detected ng/L
East Niles Csd — Bakersfield, Ca, CA
2023 annual report
Not detected ng/L
Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA
2023 annual report
Not detected ng/L
Golden Hills Csd — Tehachapi, Ca, CA
2022 annual report
0 ug/L
Kinneloa Irrigation Dist. — Pasadena, Ca, CA
2023 annual report
Not detected ng/L
Kinneloa Irrigation Dist. — Pasadena, Ca, CA
2022 annual report
Not detected ng/L
Lindsay, City of — Lindsay, Ca, CA
2023 annual report
Not detected ng/L
Lockeford Community Serv. Dist. — Lockeford, Ca, CA
2023 annual report
Not detected ng/L
Mojave Pud — Mojave, Ca, CA
2023 annual report
Not detected ug/L
Nashville, TN
2023 annual report
Not detected
Phelan Pinon Hills Csd — Phelan, Ca, CA
2023 annual report
0 ng/L
Planada Csd — Planada, Ca, CA
2023 annual report
0 ng/L
Pomona, CA
2024 annual report
Not detected ng/L
Poplar Comm Service Dist — Poplar, Ca, CA
2023 annual report
Not detected ng/L
Riverside Highland Water Company — Grand Terrace, Ca, CA
2023 annual report
Not detected
Rubio Canon Land & Water Association — Altadena, Ca, CA
2023 annual report
Not detected ug/L
Rubio Canon Land & Water Association — Altadena, Ca, CA
2020 annual report
Not detected ug/L
South Tahoe Pud - Main — South Lake Tahoe, Ca, CA
2023 annual report
Not detected ug/L
Strathmore Public Util Dist — Strathmore, Ca, CA
2023 annual report
Not detected ng/L
Tahoe City Pud - Tahoe Swiss Village — Tahoe City, Ca, CA
2021 annual report
Not detected
Terra Bella Irrigation District - Tbt — Terra Bella, Ca, CA
2023 annual report
Not detected ng/L
Terrace Water Company — Colton, Ca, CA
2023 annual report
Not detected ug/L
Three Valleys MWD — Claremont, Ca, CA
2023 annual report
Not detected ng/L
Tipton Community Services Dist — Tipton, Ca, CA
2022 annual report
Not detected ng/L
Westside Park Mutual Water — Palmdale, Ca, CA
2023 annual report
Not detected ug/L
White Fence Farms Mwc No. 1 — Palmdale, Ca, CA
2021 annual report
Not detected ug/L
White Fence Farms Mwc No. 1 — Palmdale, Ca, CA
2023 annual report
Not detected ug/L
White Fence Farms Mwc No. 1 — Palmdale, Ca, CA
2020 annual report
Not detected ug/L
White Fence Farms Mwc No.3 — Lancaster, Ca, CA
2023 annual report
Not detected ug/L
White Fence Farms Mwc No.3 — Lancaster, Ca, CA
2020 annual report
Not detected ug/L
White Fence Farms Mwc No.3 — Lancaster, Ca, CA
2022 annual report
Not detected ug/L
Woodlake, City of — Woodlake, Ca, CA
2023 annual report
Not detected ng/L

Frequently asked

+What is 1,2,3-TCP?

1,2,3-TCP is a contaminant some U.S. public water utilities measure and report in their annual Consumer Confidence Report.

+What is the federal limit for 1,2,3-TCP in drinking water?

The federal Public health goal for 1,2,3-TCP is 0.005 %. The EPA enforces this against the regulated reporting statistic (typically a running annual average or 90th percentile), not a single-sample spike.

+How many U.S. water systems have 1,2,3-TCP over the federal limit?

Zero of the 93 public water systems in The Water Map dataset currently report 1,2,3-TCP at or above its federal limit.

+How can I check if 1,2,3-TCP is in my city's tap water?

Search your city on The Water Map (https://www.thewatermap.com/) or browse the list on this page. Every U.S. public water utility is required to publish an annual Consumer Confidence Report that lists every contaminant it measured, including 1,2,3-TCP.

See 1,2,3-TCP on the map

Color-coded by status across the whole country.

Open the map →