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Tap water quality report

Lodi, CA

EPA monitoring detected 43 contaminants across the 3 water suppliers serving Lodi. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

3
water suppliers
69,823
people served
43
contaminants found

What was found in Lodi's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
800000 µg/L 8000%
of the EPA limit, in the worst sample — 10000 µg/L
3/3 SYR4
Nitrate
7910 µg/L 79%
of the EPA limit 10000 µg/L
3/3 SYR4
Fluoride
3900 µg/L 98%
of the EPA limit 4000 µg/L
3/3 SYR4
Nitrite
680 µg/L 68%
of the EPA limit 1000 µg/L
1/3 SYR4
Barium
250 µg/L 13%
of the EPA limit 2000 µg/L
3/3 SYR4
Total Haloacetic Acids (HAA5)
158 µg/L 263%
of the EPA limit, in the worst sample — 60 µg/L
2/3 SYR4
TTHM
109 µg/L 136%
of the EPA limit, in the worst sample — 80 µg/L
2/3 SYR4
Chloroform
94 µg/L
No EPA limit set
2/3 SYR4
Trichloroacetic Acid
81 µg/L
No EPA limit set
2/3 SYR4
Dichloroacetic Acid
71 µg/L
No EPA limit set
2/3 SYR4
Combined Uranium
41.273 µg/L 138%
of the EPA limit, in the worst sample — 30 µg/L
1/3 SYR4
Bromodichloromethane
20.5 µg/L
No EPA limit set
2/3 SYR4
Monochloroacetic Acid
19 µg/L
No EPA limit set
2/3 SYR4
Cyanide
17 µg/L 8.5%
of the EPA limit 200 µg/L
1/3 SYR4
Chromium
11 µg/L 11%
of the EPA limit 100 µg/L
2/3 SYR4
Arsenic
10 µg/L 100%
of the EPA limit 10 µg/L
2/3 SYR4
Bromoform
10 µg/L
No EPA limit set
2/3 SYR4
Copper
8.8 µg/L 0.7%
of the EPA limit 1300 µg/L
1/3 SYR4
Dibromochloromethane
7.1 µg/L
No EPA limit set
2/3 SYR4
Dibromoacetic Acid
6 µg/L
No EPA limit set
2/3 SYR4
Diquat
5.7 µg/L 29%
of the EPA limit 20 µg/L
1/3 SYR4
Carbon Tetrachloride
5.3 µg/L 106%
of the EPA limit, in the worst sample — 5 µg/L
1/3 SYR4
Tetrachloroethylene
4.4 µg/L 88%
of the EPA limit 5 µg/L
1/3 SYR4
Trichloroethylene
4.3 µg/L 86%
of the EPA limit 5 µg/L
1/3 SYR4
Selenium
2.6 µg/L 5.2%
of the EPA limit 50 µg/L
3/3 SYR4
Monobromoacetic Acid
2 µg/L
No EPA limit set
2/3 SYR4
1,2-DIBROMO-3-CHLOROPROPANE
1.3 µg/L 650%
of the EPA limit, in the worst sample — 0.2000 µg/L
1/3 SYR4
1,1-Dichloroethylene
0.8900 µg/L 13%
of the EPA limit 7 µg/L
1/3 SYR4
Dichloromethane
0.6100 µg/L 12%
of the EPA limit 5 µg/L
1/3 SYR4
Antimony, Total
0.2100 µg/L 3.5%
of the EPA limit 6 µg/L
1/3 SYR4
Lead
0.2000 µg/L 1.3%
of the EPA limit 15 µg/L
2/3 SYR4
Mercury
0.1900 µg/L 9.5%
of the EPA limit 2 µg/L
1/3 SYR4
Ethylene Dibromide
0.1000 µg/L 200%
of the EPA limit, in the worst sample — 0.0500 µg/L
1/3 SYR4
Hexachlorocyclopentadiene
0.0560 µg/L 0.1%
of the EPA limit 50 µg/L
1/3 SYR4
Dinoseb
0.0390 µg/L 0.6%
of the EPA limit 7 µg/L
1/3 SYR4
PFBS
0.0170 µg/L
No EPA limit set
1/3 UCMR-5
PFOA
0.0062 µg/L
No EPA limit set
1/3 UCMR-5
PFHXS
0.0061 µg/L
No EPA limit set
1/3 UCMR-5
PFOS
0.0056 µg/L
No EPA limit set
1/3 UCMR-5
Pfpea
0.0054 µg/L
No EPA limit set
1/3 UCMR-5
Pfhxa
0.0050 µg/L
No EPA limit set
1/3 UCMR-5
Pfhpa
0.0033 µg/L
No EPA limit set
1/3 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
3/3 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 single worst sample on record — 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 Lodi

SupplierPopulation served
LODI, CITY OF 68,272
LITTLE POTATO SLOUGH MUTUAL 1,510
HAYNES BOARD & CARE HOME 41

Frequently asked questions about Lodi tap water

Is Lodi tap water safe to drink?

EPA testing detected 43 contaminants in the water serving Lodi. 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 Lodi?

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

What contaminants are in Lodi's water?

The contaminants EPA monitoring detected in Lodi include Nitrate-Nitrite, Nitrate, Fluoride, Nitrite, Barium. The full list, with the highest level found 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.