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Tap water quality report

Nasa Ames Research Center

EPA monitoring tested this supplier for 42 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

42
contaminants tested
11
detected
16,273
people served
2
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
SWP
Ownership
Federal government
Counties served
Santa Clara

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.

2
health-based violations
4
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2015-03-01 → 2015-03-31
TT Health-based Resolved 2015-03-01 → 2015-03-31
MR Monitoring Resolved 2013-10-01 → 2013-10-31
MR Monitoring Resolved 2013-10-01 → 2013-10-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Total Haloacetic Acids (HAA5)
56.7 µg/L 95%
of the EPA limit 60 µg/L
 52/58 SYR4 2012–2019
Trichloroacetic Acid
31.4 µg/L
No EPA limit set
 52/58 SYR4 2012–2019
Dichloroacetic Acid
29 µg/L
No EPA limit set
 51/58 SYR4 2012–2019
Bromodichloromethane
5.6 µg/L
No EPA limit set
 49/49 SYR4 2012–2019
Chloroform
61 µg/L
No EPA limit set
 49/49 SYR4 2012–2019
TTHM
65 µg/L 81%
of the EPA limit 80 µg/L
 49/49 SYR4 2012–2019
Monochloroacetic Acid
10.5 µg/L
No EPA limit set
 16/58 SYR4 2012–2019
Lead
0.0104 mg/L 69%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2023
Dibromochloromethane
2 µg/L
No EPA limit set
 7/49 SYR4 2012–2019
Dibromoacetic Acid
2.3 µg/L
No EPA limit set
 3/58 SYR4 2012–2019
Bromoform
1.5 µg/L
No EPA limit set
 2/49 SYR4 2012–2019
31 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaMonobromoacetic AcidNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaLithium

Utility contact

Contact
TURNER, GARRETT
Email
garrett.michael.turner@nasa.gov

Frequently asked questions about Nasa Ames Research Center

Is Nasa Ames Research Center tap water safe to drink?

EPA monitoring detected 11 contaminants in Nasa Ames Research Center'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 Nasa Ames Research Center's water?

EPA monitoring detected Total Haloacetic Acids (HAA5), Trichloroacetic Acid, Dichloroacetic Acid, Bromodichloromethane, Chloroform, and others. The full list with the level and data source for each is above.

How many people does Nasa Ames Research Center serve?

Nasa Ames Research Center reports serving 16,273 people in California, per its EPA record.

Has Nasa Ames Research Center had any water quality violations?

The EPA has 4 violations on file for Nasa Ames Research Center, of which 2 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.