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Tap water quality report

Gswc - Calipatria

EPA monitoring tested this supplier for 106 contaminants and detected 18. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

106
contaminants tested
18
detected
7,363
people served
4
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
SWP
Ownership
Private
Counties served
Imperial

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

4
health-based violations
4
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2006-03-01 → 2006-03-31
TT Health-based Resolved 2004-12-01 → 2004-12-31
TT Health-based Resolved 2004-12-01 → 2004-12-31
TT Health-based Resolved 2004-12-01 → 2004-12-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
21 µg/L
No EPA limit set
worst single sample: 29 µg/L
69/72 SYR4 2013–2019
Bromoform
13.6 µg/L
No EPA limit set
worst single sample: 19 µg/L
69/72 SYR4 2013–2019
Dibromochloromethane
24.6 µg/L
No EPA limit set
worst single sample: 31 µg/L
69/72 SYR4 2013–2019
TTHM
71.2 µg/L 89%
of the EPA limit 80 µg/L
worst single sample: 86 µg/L
69/72 SYR4 2013–2019
Chloroform
19.7 µg/L
No EPA limit set
worst single sample: 32 µg/L
67/72 SYR4 2013–2019
Dibromoacetic Acid
7.095 µg/L
No EPA limit set
worst single sample: 8 µg/L
50/50 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
22.8 µg/L 38%
of the EPA limit 60 µg/L
worst single sample: 36 µg/L
49/50 SYR4 2013–2019
Dichloroacetic Acid
10 µg/L
No EPA limit set
worst single sample: 17 µg/L
48/50 SYR4 2013–2019
Trichloroacetic Acid
6.22 µg/L
No EPA limit set
worst single sample: 8.9 µg/L
37/50 SYR4 2013–2019
Monobromoacetic Acid
2.18 µg/L
No EPA limit set
worst single sample: 4 µg/L
25/50 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 21/21 LCR 2025
Monochloroacetic Acid
5.085 µg/L
No EPA limit set
worst single sample: 5.4 µg/L
10/50 SYR4 2013–2019
Lithium
82.2 µg/L
No EPA limit set
 4/4 UCMR-5 2024
Fluoride
368 µg/L 9.2%
of the EPA limit 4000 µg/L
worst single sample: 370 µg/L
3/3 SYR4 2012–2019
Barium
129.5 µg/L 6.5%
of the EPA limit 2000 µg/L
worst single sample: 130 µg/L
2/2 SYR4 2018–2019
Nitrate
174.02 µg/L 1.7%
of the EPA limit 10000 µg/L
 2/6 SYR4 2012–2019
Arsenic
3.1 µg/L 31%
of the EPA limit 10 µg/L
 1/2 SYR4 2018–2019
Dichloromethane
0.7500 µg/L 15%
of the EPA limit 5 µg/L
 1/8 SYR4 2018–2019
88 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitrate-NitriteNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
TINOCO GALLARDO, OMAR
Phone
310-848-5505
Email
[email protected]

Frequently asked questions about Gswc - Calipatria

Is Gswc - Calipatria tap water safe to drink?

EPA monitoring detected 18 contaminants in Gswc - Calipatria's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Gswc - Calipatria's water?

EPA monitoring detected Bromodichloromethane, Bromoform, Dibromochloromethane, TTHM, Chloroform, and others. The full list with the level and data source for each is above.

How many people does Gswc - Calipatria serve?

Gswc - Calipatria reports serving 7,363 people in California, per its EPA record.

Has Gswc - Calipatria had any water quality violations?

The EPA has 4 violations on file for Gswc - Calipatria, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.