DrinkingWaterCheck

Is CITY OF SOUTH PASADENA's water safe to drink?

CITY OF SOUTH PASADENA has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 25,329, over 6,147 connections.

CITY OF SOUTH PASADENA's record against the rest of the country

4 total violations and 3 health-based ones put CITY OF SOUTH PASADENA at the 57th percentile nationally for violation burden, rank 5,574 of 12,903.

Against the CA average

Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - CITY OF SOUTH PASADENA's 3 is at or below that. See the lead and copper guide for why lead counts differently.

Most recent violation on record

CITY OF SOUTH PASADENA's most recent violation on record is dated 1999-01-12, with the most recent health-based one dated 1999-01-12. Last reported to EPA: 06/22/2026.

The concern categories on record

CITY OF SOUTH PASADENA'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:

The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.

What CITY OF SOUTH PASADENA's record does not cover

This is what CITY OF SOUTH PASADENA reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Between the utility's meter and CITY OF SOUTH PASADENA's customers' taps is household plumbing, invisible to a system-level record ranked 5,574th of 12,903 by violation count. The guide to what this data misses covers that gap.