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Tap water quality report

Santee, CA

EPA monitoring detected 23 contaminants across the 3 water suppliers serving Santee. 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.

3
water suppliers
94,580
people served
23
contaminants found
California rankings Lead in California PFAS in California

What was found in Santee'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
5980 µg/L 60%
of the EPA limit 10000 µg/L
Highest in the city: BARRETT LAKE MH AND RV LLC · 300 people · 2019
2/3 SYR4
Fluoride
1227.5 µg/L 31%
of the EPA limit 4000 µg/L
Highest in the city: BARRETT LAKE MH AND RV LLC · 300 people · 2019
2/3 SYR4
Nitrate-Nitrite
600 µg/L 6%
of the EPA limit 10000 µg/L
Highest in the city: HEAVENLY OAKS · 300 people · 2012
1/3 SYR4
Combined Uranium
126.948 µg/L 423%
of the EPA limit, at the 95th percentile of samples — 30 µg/L
Highest in the city: BARRETT LAKE MH AND RV LLC · 300 people · 2019
2/3 SYR4
Dalapon
83 µg/L 42%
of the EPA limit 200 µg/L
Highest in the city: BARRETT LAKE MH AND RV LLC · 300 people · 2017
1/3 SYR4
Barium
54.55 µg/L 2.7%
of the EPA limit 2000 µg/L
Highest in the city: BARRETT LAKE MH AND RV LLC · 300 people · 2019
2/3 SYR4
TTHM
47.5 µg/L 59%
of the EPA limit 80 µg/L
Main supplier: PADRE DAM MWD · 93,980 people · 2019
1/3 SYR4
Lithium
47 µg/L
No EPA limit set
Main supplier: PADRE DAM MWD · 93,980 people · 2023
1/3 UCMR-5
Dibromochloromethane
18 µg/L
No EPA limit set
Main supplier: PADRE DAM MWD · 93,980 people · 2019
1/3 SYR4
Bromodichloromethane
13 µg/L
No EPA limit set
Main supplier: PADRE DAM MWD · 93,980 people · 2019
1/3 SYR4
Lead
13 µg/L 87%
of the EPA limit 15 µg/L
Highest in the city: HEAVENLY OAKS · 300 people · 2019
1/3 SYR4
Chloroform
11 µg/L
No EPA limit set
Main supplier: PADRE DAM MWD · 93,980 people · 2019
1/3 SYR4
Copper
10 µg/L 0.8%
of the EPA limit 1300 µg/L
Highest in the city: BARRETT LAKE MH AND RV LLC · 300 people · 2017
1/3 SYR4
Total Haloacetic Acids (HAA5)
10 µg/L 17%
of the EPA limit 60 µg/L
Main supplier: PADRE DAM MWD · 93,980 people · 2019
1/3 SYR4
Bromoform
9.52 µg/L
No EPA limit set
Main supplier: PADRE DAM MWD · 93,980 people · 2019
1/3 SYR4
Monochloroacetic Acid
7.4 µg/L
No EPA limit set
Main supplier: PADRE DAM MWD · 93,980 people · 2019
1/3 SYR4
Dichloroacetic Acid
5.2 µg/L
No EPA limit set
Main supplier: PADRE DAM MWD · 93,980 people · 2019
1/3 SYR4
Monobromoacetic Acid
3.945 µg/L
No EPA limit set
Main supplier: PADRE DAM MWD · 93,980 people · 2019
1/3 SYR4
Trichloroacetic Acid
3.67 µg/L
No EPA limit set
Main supplier: PADRE DAM MWD · 93,980 people · 2019
1/3 SYR4
Dibromoacetic Acid
3.1 µg/L
No EPA limit set
Main supplier: PADRE DAM MWD · 93,980 people · 2019
1/3 SYR4
Cadmium
2 µg/L 40%
of the EPA limit 5 µg/L
Highest in the city: BARRETT LAKE MH AND RV LLC · 300 people · 2019
1/3 SYR4
Lead
0.0011 mg/L 7.3%
of the EPA limit 0.0150 mg/L
Main supplier: PADRE DAM MWD · 93,980 people · 2025
Highest in the city: 0.0063 mg/L — HEAVENLY OAKS · 300 people · 2025
3/3 LCR
Pfba
0.0058 µg/L
No EPA limit set
Main supplier: PADRE DAM MWD · 93,980 people · 2023
1/3 UCMR-5
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 Santee

SupplierPopulation served
PADRE DAM MWD 93,980
BARRETT LAKE MH AND RV LLC 300
HEAVENLY OAKS 300

Frequently asked questions about Santee tap water

Is Santee tap water safe to drink?

EPA testing detected 23 contaminants in the water serving Santee. 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 Santee?

3 public water suppliers report drinking-water monitoring for Santee, California to the EPA. Each is listed above with its population served.

What contaminants are in Santee's water?

The contaminants EPA monitoring detected in Santee include Nitrate, Fluoride, Nitrate-Nitrite, Combined Uranium, Dalapon. 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.