What's in RAPID CITY's water?

RAPID CITY's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. It serves 72,009 people through 23,171 service connections.

How this compares nationally

7 total violations and 0 health-based ones put RAPID CITY at the 17th percentile nationally for violation burden, rank 10,738 of 12,903.

Against the SD average

Among the 74 SD systems in this dataset, the average is 3.0 health-based violations - RAPID CITY's 0 is at or below that. The clean-record guide covers what a comparison like this can hide.

Most recent violation on record

RAPID CITY's most recent violation on record is dated 2002-01-10. Last reported to EPA: 06/17/2026.

What RAPID CITY's record does not cover

RAPID CITY'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 7 logged violations can see. The guide to what this data misses covers that gap.