A91/100
Moffett Field Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 16,273 residents · California
What's In Moffett Field's Tap Water?
34
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.010 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2015.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
NASA AMES RESEARCH CENTER
Population Served
16,273
Water Source
Purchased Surface Water
System ID
CA4300997
Frequently Asked Questions About Moffett Field Water
Is Moffett Field tap water safe to drink?
Moffett Field, California tap water receives a grade of A (91/100), which is considered excellent. Out of 34 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Moffett Field's water?
Of the 34 contaminants tested in Moffett Field's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Moffett Field have any water quality violations?
Yes, Moffett Field has 2 EPA violation(s) on record, with the most recent in 2015. Violation types include TT, MR. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Moffett Field?
Moffett Field water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Moffett Field's tap water come from?
Moffett Field's drinking water is sourced from purchased surface water and supplied by NASA AMES RESEARCH CENTER. The system serves approximately 16,273 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Moffett Field's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Moffett Field's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Moffett Field's water compare to other cities in California?
Moffett Field's water quality score of 91/100 earns a grade of A, which is considered excellent. This places Moffett Field among the better-performing water systems in California. Visit our California state page to see how all cities in the state compare.
What should I do if I'm concerned about Moffett Field's water quality?
If you have concerns about Moffett Field's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (NASA AMES RESEARCH CENTER) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.