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EWG's Tap Water Database — 2021 UPDATE

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Arsenic

Coachella Valley Water District: Cove Community

Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.

 

812

Samples

4

Samples exceeding legal limit (MCL)

362

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.34 ppb11735ND - 17.0 ppb
20151.74 ppb12443ND - 12.0 ppb
20162.28 ppb13975ND - 10.00 ppb
20171.85 ppb17175ND - 10.00 ppb
20182.31 ppb13369ND - 9.40 ppb
20191.96 ppb12865ND - 6.90 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.004 ppb

The EWG Health Guideline of 0.004 ppb for arsenic was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL) 10 ppb

The legal limit for arsenic, established in 2001, was based on costs for arsenic removal, as calculated at the time that the standard was set. This limit does not fully protect against the risk of cancer due to arsenic exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-035135-261-1123ND
2014-01-035135-271-095917.0 ppb
2014-01-075135-271-08494.10 ppb
2014-01-105135-261-10253.40 ppb
2014-01-145135-261-1036ND
2014-01-145135-271-130411.0 ppb
2014-01-215135-271-0935ND
2014-01-235135-261-1005ND
2014-01-285135-261-1025ND
2014-01-285135-271-1235ND
2014-02-045135-271-0836ND
2014-02-065135-261-1116ND
2014-02-115135-261-0920ND
2014-02-115135-271-11153.50 ppb
2014-02-195135-261-0946ND
2014-02-215135-271-09575.20 ppb
2014-02-255135-261-0938ND
2014-02-255135-271-1023ND
2014-03-045135-261-1150ND
2014-03-045135-271-10202.10 ppb
2014-03-115135-261-09572.30 ppb
2014-03-125135-271-11015.30 ppb
2014-03-185135-215-09103.10 ppb
2014-03-185135-261-1201ND
2014-03-185135-271-08536.60 ppb
2014-03-255135-261-0949ND
2014-03-285135-271-1047ND
2014-04-015135-261-10353.40 ppb
2014-04-115135-271-0945ND
2014-05-054790-279-1225ND
2014-05-135135-271-1430ND
2014-05-155135-261-0923ND
2014-05-205135-271-1152ND
2014-06-045135-271-0858ND
2014-06-105135-271-10104.90 ppb
2014-06-115135-215-08404.20 ppb
2014-06-175135-271-09094.70 ppb
2014-06-185135-022-0853ND
2014-06-185135-118-0750ND
2014-06-185135-154-0851ND
2014-06-185135-164-0741ND
2014-06-185135-169-0943ND
2014-06-185135-201-1107ND
2014-06-185135-220-0903ND
2014-06-185135-249-08292.50 ppb
2014-07-015135-011-0753ND
2014-07-015135-170-0850ND
2014-07-015135-179-1044ND
2014-07-015135-202-1000ND
2014-07-015135-206-0839ND
2014-07-015135-219-1217ND
2014-07-015135-221-1113ND
2014-07-015135-257-07513.10 ppb
2014-07-025135-271-0914ND
2014-07-085135-020-0807ND
2014-07-085135-084-0857ND
2014-07-085135-167-0952ND
2014-07-085135-168-0933ND
2014-07-085135-176-0825ND
2014-07-085135-199-0744ND
2014-07-155135-271-08583.00 ppb
2014-07-225135-271-09105.40 ppb
2014-07-295135-088-1026ND
2014-07-295135-117-0934ND
2014-07-295135-223-0853ND
2014-08-015135-271-10072.70 ppb
2014-08-055135-261-1154ND
2014-08-055135-271-0852ND
2014-08-125135-261-1150ND
2014-08-125135-271-1000ND
2014-08-195135-261-1215ND
2014-08-195135-271-09302.20 ppb
2014-08-265135-261-1035ND
2014-08-265135-271-0905ND
2014-09-045135-261-1321ND
2014-09-045135-271-10082.20 ppb
2014-09-095135-271-1057ND
2014-09-095135-271-1105ND
2014-09-115135-261-1032ND
2014-09-114790-261-1033ND
2014-09-165135-271-1345ND
2014-09-175135-215-11253.30 ppb
2014-09-175135-261-1058ND
2014-09-235135-261-1059ND
2014-09-235135-271-1012ND
2014-09-305135-261-1142ND
2014-09-305135-271-0939ND
2014-10-075135-261-1208ND
2014-10-075135-271-1010ND
2014-10-145135-271-10252.50 ppb
2014-10-145135-273-1330ND
2014-10-155135-261-0950ND
2014-10-215135-271-09442.40 ppb
2014-10-285135-261-1348ND
2014-10-285135-271-1221ND
2014-10-285135-273-10052.20 ppb
2014-11-055135-261-1310ND
2014-11-055135-271-10173.20 ppb
2014-11-055135-273-1147ND
2014-11-135135-261-1000ND
2014-11-135135-271-1108ND
2014-11-185135-261-1132ND
2014-11-185135-271-08564.90 ppb
2014-11-204790-273-0945ND
2014-11-205135-273-09452.80 ppb
2014-11-255135-261-1105ND
2014-11-255135-271-0932ND
2014-12-015135-271-12394.20 ppb
2014-12-025135-215-12203.50 ppb
2014-12-025135-273-13047.70 ppb
2014-12-095135-261-1015ND
2014-12-095135-273-122311.0 ppb
2014-12-185135-271-10204.40 ppb
2014-12-185135-273-1112ND
2014-12-235135-273-1144ND
2014-12-304790-271-13202.50 ppb
2014-12-304790-273-1044ND
2015-01-065135-261-1000ND
2015-01-065135-271-1240ND
2015-01-085135-273-13202.60 ppb
2015-01-135135-261-1121ND
2015-01-155135-271-1120ND
2015-01-165135-273-1036ND
2015-01-205135-261-1249ND
2015-01-205135-271-09562.40 ppb
2015-01-205135-273-1134ND
2015-01-275135-261-1258ND
2015-01-275135-271-13422.20 ppb
2015-02-035135-261-1057ND
2015-02-035135-271-13132.60 ppb
2015-02-035135-273-0948ND
2015-02-105135-261-1254ND
2015-02-105135-271-11242.20 ppb
2015-02-145135-271-0945ND
2015-02-175135-261-1013ND
2015-02-175135-273-0906ND
2015-02-185135-271-0949ND
2015-02-245135-261-1200ND
2015-02-245135-271-0945ND
2015-03-035135-261-1302ND
2015-03-035135-271-09425.30 ppb
2015-03-105135-261-1325ND
2015-03-105135-271-11007.20 ppb
2015-03-175135-261-1315ND
2015-03-175135-271-09425.40 ppb
2015-03-175135-273-1138ND
2015-03-245135-261-1316ND
2015-03-255135-215-09152.60 ppb
2015-03-265135-271-11225.70 ppb
2015-03-315135-261-1310ND
2015-03-315135-271-105610.00 ppb
2015-04-075135-261-1115ND
2015-04-075135-271-13248.60 ppb
2015-04-145135-261-1327ND
2015-04-145135-271-09207.20 ppb
2015-04-145135-273-1141ND
2015-04-215135-261-1120ND
2015-04-215135-271-1330ND
2015-04-285135-261-1020ND
2015-04-285135-271-1218ND
2015-05-075135-261-1208ND
2015-05-075135-271-1005ND
2015-05-125135-271-1140ND
2015-05-125135-273-1300ND
2015-05-155135-261-1611ND
2015-05-195135-261-1235ND
2015-05-195135-271-10252.50 ppb
2015-05-215135-261-1235ND
2015-05-275135-261-1049ND
2015-05-275135-271-12492.10 ppb
2015-05-275135-273-0829ND
2015-06-025135-261-1100ND
2015-06-045135-273-0933ND
2015-06-055135-271-11103.00 ppb
2015-06-095135-261-1200ND
2015-06-095135-273-1045ND
2015-06-105135-215-11222.60 ppb
2015-06-175135-261-0905ND
2015-06-175135-271-11523.60 ppb
2015-06-175135-273-1021ND
2015-06-235135-105-1001ND
2015-06-235135-131-0800ND
2015-06-235135-143-0828ND
2015-06-235135-174-0733ND
2015-06-235135-203-0926ND
2015-06-235135-222-0841ND
2015-06-235135-261-1230ND
2015-06-235135-271-11463.20 ppb
2015-06-255135-130-0829ND
2015-06-255135-146-0737ND
2015-06-255135-173-0956ND
2015-06-255135-175-0749ND
2015-06-255135-198-0828ND
2015-06-255135-200-0916ND
2015-06-255135-205-0921ND
2015-06-305135-271-11396.80 ppb
2015-07-075135-271-09306.50 ppb
2015-07-085135-106-1001ND
2015-07-085135-135-0913ND
2015-07-085135-172-1050ND
2015-07-085135-177-0921ND
2015-07-085135-178-0833ND
2015-07-085135-209-1012ND
2015-07-165135-073-0819ND
2015-07-165135-079-0909ND
2015-07-165135-207-0844ND
2015-07-165135-210-0956ND
2015-07-165135-214-0756ND
2015-07-165135-271-08395.30 ppb
2015-07-215135-109-0840ND
2015-07-215135-145-0920ND
2015-07-215135-158-1000ND
2015-07-215135-182-1059ND
2015-07-215135-215-09262.40 ppb
2015-07-245135-271-11182.20 ppb
2015-07-285135-134-0943ND
2015-07-285135-159-1043ND
2015-07-305135-261-12253.30 ppb
2015-07-305135-271-08456.50 ppb
2015-08-065135-271-1040ND
2015-08-075135-261-13302.90 ppb
2015-08-115135-261-09584.60 ppb
2015-08-145135-271-12243.40 ppb
2015-08-195135-271-11152.20 ppb
2015-08-255135-271-14203.90 ppb
2015-09-025135-271-10129.20 ppb
2015-09-105135-271-09545.80 ppb
2015-09-155135-271-09446.90 ppb
2015-09-255135-215-10062.60 ppb
2015-09-305135-194-1030ND
2015-09-305135-204-0945ND
2015-11-055135-271-10336.50 ppb
2015-11-105135-271-0928ND
2015-11-175135-271-0955ND
2015-11-245135-271-09109.80 ppb
2015-12-015135-271-10206.50 ppb
2015-12-045135-215-09292.40 ppb
2015-12-085135-271-11457.80 ppb
2015-12-155135-271-10177.20 ppb
2015-12-225135-271-09107.60 ppb
2015-12-295135-271-090512.0 ppb
2016-01-055135-271-09304.70 ppb
2016-01-125135-271-0949ND
2016-01-205135-271-1041ND
2016-01-265135-271-09232.40 ppb
2016-02-095135-271-09204.90 ppb
2016-02-105135-273-1345ND
2016-02-185135-271-10082.40 ppb
2016-02-255135-271-11022.30 ppb
2016-02-255135-273-1203ND
2016-03-015135-271-08353.50 ppb
2016-03-085135-215-08402.00 ppb
2016-03-105135-271-09423.30 ppb
2016-03-105135-273-1258ND
2016-03-175135-271-10325.40 ppb
2016-03-175135-273-1158ND
2016-03-225135-271-10292.20 ppb
2016-03-225135-273-0935ND
2016-03-295135-271-12402.10 ppb
2016-03-315135-273-1305ND
2016-04-055135-271-0839ND
2016-04-085135-273-0843ND
2016-04-125135-271-0940ND
2016-04-145135-273-1107ND
2016-04-195135-271-09002.10 ppb
2016-04-205135-261-11093.40 ppb
2016-04-265135-271-09228.10 ppb
2016-04-275135-261-10373.20 ppb
2016-05-035135-271-09308.20 ppb
2016-05-055135-261-09493.40 ppb
2016-05-105135-261-11213.50 ppb
2016-05-105135-271-10186.40 ppb
2016-05-175135-261-10584.60 ppb
2016-05-175135-271-08553.90 ppb
2016-05-185135-273-1022ND
2016-05-245135-261-11034.50 ppb
2016-05-245135-271-0903ND
2016-05-245135-273-13253.20 ppb
2016-06-015135-261-10234.40 ppb
2016-06-015135-271-09058.70 ppb
2016-06-075135-261-11452.10 ppb
2016-06-075135-271-09105.00 ppb
2016-06-145135-215-08252.30 ppb
2016-06-145135-261-11482.10 ppb
2016-06-145135-271-10355.10 ppb
2016-06-215135-261-10132.60 ppb
2016-06-215135-271-0812ND
2016-06-285135-261-1053ND
2016-06-285135-271-09333.40 ppb
2016-07-065135-261-0821ND
2016-07-065135-271-10228.70 ppb
2016-07-125135-031-0845ND
2016-07-125135-032-0918ND
2016-07-125135-080-0951ND
2016-07-125135-129-0945ND
2016-07-125135-166-0901ND
2016-07-125135-196-0808ND
2016-07-125135-212-1315ND
2016-07-125135-216-0753ND
2016-07-125135-261-10486.80 ppb
2016-07-125135-271-09034.20 ppb
2016-07-195135-023-0849ND
2016-07-195135-029-1003ND
2016-07-195135-041-1031ND
2016-07-195135-128-0854ND
2016-07-195135-132-1107ND
2016-07-195135-160-1021ND
2016-07-195135-218-1106ND
2016-07-195135-261-10226.10 ppb
2016-07-195135-271-084410.00 ppb
2016-07-215135-273-11578.00 ppb
2016-07-265135-261-1115ND
2016-07-265135-271-12372.60 ppb
2016-07-265135-273-09432.10 ppb
2016-08-025135-261-09364.50 ppb
2016-08-025135-271-08476.00 ppb
2016-08-025135-273-1214ND
2016-08-095135-024-0858ND
2016-08-095135-042-0915ND
2016-08-095135-136-1020ND
2016-08-095135-155-0918ND
2016-08-095135-217-0840ND
2016-08-095135-261-1115ND
2016-08-095135-271-09302.60 ppb
2016-08-095135-273-0840ND
2016-08-115135-025-0842ND
2016-08-115135-030-0950ND
2016-08-115135-125-0950ND
2016-08-115135-165-0845ND
2016-08-175135-261-1043ND
2016-08-175135-271-10102.70 ppb
2016-08-235135-261-1039ND
2016-08-235135-271-08305.90 ppb
2016-08-305135-261-1030ND
2016-08-305135-271-09004.20 ppb
2016-09-075135-261-1135ND
2016-09-075135-271-09497.90 ppb
2016-09-135135-215-09552.10 ppb
2016-09-135135-261-11253.70 ppb
2016-09-135135-271-09405.00 ppb
2016-09-205135-261-10253.70 ppb
2016-09-205135-271-09104.90 ppb
2016-09-275135-261-1115ND
2016-09-275135-271-13214.50 ppb
2016-10-049590-261-09203.90 ppb
2016-10-049590-271-12244.20 ppb
2016-10-119590-261-10503.60 ppb
2016-10-119590-271-09124.30 ppb
2016-10-185135-261-07403.60 ppb
2016-10-185135-271-08363.50 ppb
2016-10-185135-273-13142.30 ppb
2016-10-255135-273-10115.10 ppb
2016-10-265135-261-1120ND
2016-10-265135-271-09485.20 ppb
2016-11-015135-261-0930ND
2016-11-015135-271-1055ND
2016-11-015135-273-13033.40 ppb
2016-11-085135-261-1117ND
2016-11-085135-271-08456.50 ppb
2016-11-085135-273-09523.30 ppb
2016-11-155135-261-10254.40 ppb
2016-11-155135-271-09112.10 ppb
2016-11-155135-273-1120ND
2016-11-225135-261-1015ND
2016-11-225135-271-09124.00 ppb
2016-11-225135-273-1055ND
2016-11-295135-271-09034.70 ppb
2016-11-295135-273-1105ND
2016-12-065135-271-09433.80 ppb
2016-12-065135-273-1050ND
2016-12-135135-271-10544.00 ppb
2016-12-135135-273-1210ND
2016-12-155135-215-09322.40 ppb
2016-12-165135-261-1327ND
2016-12-205135-261-1151ND
2016-12-205135-271-08464.10 ppb
2016-12-205135-273-0947ND
2016-12-285135-261-09332.40 ppb
2016-12-285135-271-12464.10 ppb
2016-12-295135-273-0930ND
2017-01-035135-271-09104.90 ppb
2017-01-045135-261-1300ND
2017-01-105135-261-1244ND
2017-01-105135-271-09094.80 ppb
2017-01-125135-273-09293.10 ppb
2017-01-175135-261-1055ND
2017-01-175135-271-09444.70 ppb
2017-01-175135-273-1158ND
2017-01-239590-224-1045ND
2017-01-245135-261-1104ND
2017-01-245135-271-10047.00 ppb
2017-01-245135-273-1228ND
2017-01-315135-261-0932ND
2017-01-315135-271-08245.00 ppb
2017-01-315135-273-1021ND
2017-02-075135-261-11352.90 ppb
2017-02-075135-271-09513.30 ppb
2017-02-075135-273-1300ND
2017-02-145135-261-1050ND
2017-02-145135-271-13172.30 ppb
2017-02-145135-273-1145ND
2017-02-215135-261-1006ND
2017-02-215135-271-09105.50 ppb
2017-02-215135-273-1202ND
2017-02-285135-261-11185.30 ppb
2017-02-285135-271-09175.60 ppb
2017-02-285135-273-1015ND
2017-03-075135-261-1152ND
2017-03-075135-271-09002.30 ppb
2017-03-085135-215-0855ND
2017-03-145135-215-0945ND
2017-03-145135-261-1035ND
2017-03-145135-271-09004.30 ppb
2017-03-235135-261-09233.00 ppb
2017-03-235135-271-11174.50 ppb
2017-03-285135-271-0922ND
2017-04-055135-261-1336ND
2017-04-055135-271-10554.90 ppb
2017-04-115135-261-1051ND
2017-04-115135-271-09053.60 ppb
2017-04-115135-273-1233ND
2017-04-185135-261-10302.00 ppb
2017-04-185135-271-09084.50 ppb
2017-04-195135-273-1108ND
2017-04-255135-261-0855ND
2017-04-255135-271-10329.10 ppb
2017-04-255135-273-0926ND
2017-05-025135-261-11553.50 ppb
2017-05-025135-271-09103.40 ppb
2017-05-025135-273-1325ND
2017-05-095135-261-1045ND
2017-05-095135-271-0930ND
2017-05-165135-261-12282.30 ppb
2017-05-165135-271-11233.40 ppb
2017-05-185135-273-1118ND
2017-05-235135-261-11132.70 ppb
2017-05-235135-271-10302.60 ppb
2017-05-235135-273-1135ND
2017-05-305135-215-0716ND
2017-05-315135-261-1100ND
2017-05-315135-271-08453.80 ppb
2017-05-315135-273-0938ND
2017-06-055135-261-1005ND
2017-06-055135-271-1150ND
2017-06-055135-273-1332ND
2017-06-135135-011-0934ND
2017-06-135135-117-1020ND
2017-06-135135-130-0920ND
2017-06-135135-154-0820ND
2017-06-135135-164-0853ND
2017-06-135135-223-1142ND
2017-06-135135-261-1125ND
2017-06-135135-271-08403.60 ppb
2017-06-135135-273-1000ND
2017-06-145135-118-0903ND
2017-06-145135-179-0850ND
2017-06-145135-201-1000ND
2017-06-145135-206-1050ND
2017-06-145135-219-1108ND
2017-06-145135-279-1009ND
2017-06-205135-271-0951ND
2017-06-205135-273-0854ND
2017-06-225135-261-0926ND
2017-06-275135-261-12105.70 ppb
2017-06-275135-271-09334.10 ppb
2017-06-275135-273-1020ND
2017-07-035135-261-10155.90 ppb
2017-07-035135-271-08355.10 ppb
2017-07-035135-273-1113ND
2017-07-115135-261-1002ND
2017-07-115135-271-12054.10 ppb
2017-07-115135-273-1320ND
2017-07-125135-022-0830ND
2017-07-125135-084-0925ND
2017-07-125135-166-1054ND
2017-07-125135-169-1020ND
2017-07-125135-176-0902ND
2017-07-135135-273-0844ND
2017-07-185135-261-1053ND
2017-07-185135-271-08172.90 ppb
2017-07-185135-273-0943ND
2017-07-255135-261-12104.80 ppb
2017-07-255135-271-08532.70 ppb
2017-07-255135-273-1010ND
2017-08-015135-261-0815ND
2017-08-015135-271-115010.00 ppb
2017-08-015135-273-1305ND
2017-08-085135-261-1033ND
2017-08-085135-271-09102.80 ppb
2017-08-085135-273-1117ND
2017-08-095135-167-1003ND
2017-08-095135-168-1042ND
2017-08-095135-170-0816ND
2017-08-095135-199-1200ND
2017-08-095135-202-0902ND
2017-08-095135-261-08403.40 ppb
2017-08-095135-271-09455.70 ppb
2017-08-095135-273-0840ND
2017-08-145135-271-08188.40 ppb
2017-08-145135-273-0936ND
2017-08-165135-020-1215ND
2017-08-165135-220-0917ND
2017-08-165135-249-0820ND
2017-08-165135-273-1300ND
2017-08-185135-261-09105.30 ppb
2017-08-225135-261-11565.30 ppb
2017-08-225135-271-08235.80 ppb
2017-08-225135-273-0950ND
2017-08-295135-261-10553.40 ppb
2017-08-295135-271-08073.50 ppb
2017-08-295135-273-0918ND
2017-08-309590-257-09302.80 ppb
2017-09-065135-261-09322.80 ppb
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