SAN DIEGO MUD 1: EPA violation history, explained
SAN DIEGO MUD 1 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 6,291 people through 2,658 service connections.
SAN DIEGO MUD 1's record against the rest of the country
SAN DIEGO MUD 1 has 16 violations on record in total, 5 of thems health-based - ranking it 3,640th of 12,903 systems by violation count, the 72th percentile nationally.
How SAN DIEGO MUD 1 compares within TX
TX's 1,633 covered systems average 6.7 health-based violations each; SAN DIEGO MUD 1 carries 5, not more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for SAN DIEGO MUD 1 is from 2027-06-06 (health-based: 2025-05-10). Last reported to EPA: 06/26/2026.
What kind of problem, specifically
SAN DIEGO MUD 1'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
- Other regulated metals - flagged from: Arsenic
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
SAN DIEGO MUD 1's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 16 logged violations can see. The guide to what this data misses covers that gap.