← Corte Madera, CA

Tap water quality report

ZIP 94965 — Corte Madera, CA

EPA monitoring across the 2 water suppliers serving ZIP 94965 in Corte Madera, CA detected 19 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

2
water suppliers
205,342
people served
19
contaminants found

What was found in ZIP 94965

The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
700000 µg/L 7000%
of the EPA limit, in the worst sample — 10000 µg/L
1/2 SYR4
Fluoride
1020 µg/L 26%
of the EPA limit 4000 µg/L
1/2 SYR4
Nitrate
700.6 µg/L 7%
of the EPA limit 10000 µg/L
1/2 SYR4
Nitrite
400 µg/L 40%
of the EPA limit 1000 µg/L
1/2 SYR4
Copper
121 µg/L 9.3%
of the EPA limit 1300 µg/L
1/2 SYR4
Barium
100 µg/L 5%
of the EPA limit 2000 µg/L
1/2 SYR4
Total Haloacetic Acids (HAA5)
99.2 µg/L 165%
of the EPA limit, in the worst sample — 60 µg/L
2/2 SYR4
TTHM
91 µg/L 114%
of the EPA limit, in the worst sample — 80 µg/L
2/2 SYR4
Chloroform
82 µg/L
No EPA limit set
2/2 SYR4
Dichloroacetic Acid
57.4 µg/L
No EPA limit set
2/2 SYR4
Trichloroacetic Acid
40.6 µg/L
No EPA limit set
2/2 SYR4
Bromodichloromethane
16.2 µg/L
No EPA limit set
2/2 SYR4
Dibromochloromethane
10.8 µg/L
No EPA limit set
2/2 SYR4
Chromium
10 µg/L 10%
of the EPA limit 100 µg/L
1/2 SYR4
Monochloroacetic Acid
6.8 µg/L
No EPA limit set
2/2 SYR4
Dibromoacetic Acid
6.4 µg/L
No EPA limit set
2/2 SYR4
Bromoform
2.9 µg/L
No EPA limit set
1/2 SYR4
Monobromoacetic Acid
1.4 µg/L
No EPA limit set
1/2 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
2/2 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.

Water suppliers serving ZIP 94965

SupplierStatePopulation served
MARIN MUNICIPAL WATER DISTRICT CA 186,895
NPS GGNRA CA 18,447

Frequently asked questions about ZIP 94965 tap water

Is the tap water in ZIP 94965 safe to drink?

EPA testing detected 19 contaminants across the water suppliers serving ZIP 94965. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 94965?

2 public water suppliers report EPA drinking-water monitoring for ZIP 94965. Each is listed above with its population served.

What contaminants are in ZIP 94965's water?

EPA monitoring detected Nitrate-Nitrite, Fluoride, Nitrate, Nitrite, Copper, and others across this ZIP's suppliers. The full list with levels and sources is above.