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Tap water quality report

Borrego Springs, CA

EPA monitoring detected 20 contaminants across the 1 water supplier serving Borrego Springs. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

1
water supplier
3,429
people served
20
contaminants found
California rankings Lead in California PFAS in California

What was found in Borrego Springs's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
2001.71 µg/L 20%
of the EPA limit 10000 µg/L
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Fluoride
1195 µg/L 30%
of the EPA limit 4000 µg/L
Main supplier: BORREGO WD · 3,429 people · 2017
1/1 SYR4
Barium
176.5 µg/L 8.8%
of the EPA limit 2000 µg/L
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Lithium
40.8 µg/L
No EPA limit set
Main supplier: BORREGO WD · 3,429 people · 2025
1/1 UCMR-5
Selenium
9.61 µg/L 19%
of the EPA limit 50 µg/L
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
TTHM
8.78 µg/L 11%
of the EPA limit 80 µg/L
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
8.395 µg/L 14%
of the EPA limit 60 µg/L
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Arsenic
6.38 µg/L 64%
of the EPA limit 10 µg/L
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Lead
5.7 µg/L 38%
of the EPA limit 15 µg/L
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Combined Uranium
5.68137 µg/L 19%
of the EPA limit 30 µg/L
Main supplier: BORREGO WD · 3,429 people · 2018
1/1 SYR4
Monochloroacetic Acid
5.565 µg/L
No EPA limit set
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Bromoform
4.17 µg/L
No EPA limit set
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Monobromoacetic Acid
3.37 µg/L
No EPA limit set
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Dibromochloromethane
3.11 µg/L
No EPA limit set
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Chromium
2.21 µg/L 2.2%
of the EPA limit 100 µg/L
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Bromodichloromethane
1.514 µg/L
No EPA limit set
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Chloroform
1.1 µg/L
No EPA limit set
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Dichloromethane
0.8300 µg/L 17%
of the EPA limit 5 µg/L
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Endrin
0.2500 µg/L 13%
of the EPA limit 2 µg/L
Main supplier: BORREGO WD · 3,429 people · 2019
1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: BORREGO WD · 3,429 people · 2025
1/1 LCR
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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Borrego Springs

SupplierPopulation served
BORREGO WD 3,429

Frequently asked questions about Borrego Springs tap water

Is Borrego Springs tap water safe to drink?

EPA testing detected 20 contaminants in the water serving Borrego Springs. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Borrego Springs?

1 public water supplier report drinking-water monitoring for Borrego Springs, California to the EPA. Each is listed above with its population served.

What contaminants are in Borrego Springs's water?

The contaminants EPA monitoring detected in Borrego Springs include Nitrate, Fluoride, Barium, Lithium, Selenium. The full list, with the level at the main supplier and the data source, is in the table above.

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.