Is SCWA MATHER-SUNRISE's water safe to drink?
SCWA MATHER-SUNRISE has at least one health-based violation EPA's ECHO database still lists as unaddressed - the required fix has not been reported complete. It serves 30,825 people through 9,341 service connections.
How this compares nationally
SCWA MATHER-SUNRISE has 4 violations on record in total, 1 of them health-based - ranking it 8,815th of 12,903 systems by violation count, the 32th percentile nationally.
How SCWA MATHER-SUNRISE compares within CA
CA's 803 covered systems average 5.8 health-based violations each; SCWA MATHER-SUNRISE carries 1, not more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for SCWA MATHER-SUNRISE is from 2025-05-10 (health-based: 2025-05-10). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
SCWA MATHER-SUNRISE's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Lead & copper - flagged from: LEAD AND COPPER RULE REVISIONS
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What this data is and is not
Everything on this page is SCWA MATHER-SUNRISE's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 4 logged violations can see. The guide to what this data misses covers that gap.