County · Colorado
Arapahoe County, Colorado: drinking water records
This overview covers 17 ZIP codes and 29 community water systems in Arapahoe County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Englewood City of CO0103045 | 57,332 | 120 | 5 | 1 | 5 ppb |
| Aurora City of CO0103005 | 533,407 | 360 | 4 | 0 | 2.5 ppb |
| East Cherry Creek Valley WSD CO0103035 | 66,130 | 300 | 2 | 0 | 0 ppb |
| Arapahoe Cnty Wwwa CO0203002 | 31,000 | 420 | 5 | 0 | 1.1 ppb |
| Inverness WSD CO0203012 | 8,140 | 480 | 1 | 0 | 4 ppb |
| Travois HOA CO0103090 | 175 | 0 | 0 | 1 | 2 ppb |
| Sierra Bonita Estates CO0103710 | 122 | 0 | 0 | 1 | 0 ppb |
| Country Gardens MHP CO0103025 | 115 | 0 | 0 | 1 | 0 ppb |
| Rolling Plains Estate CO0103081 | 40 | 0 | 0 | 4 | 1 ppb |
| Southgate WSD CO0103721 | 55,000 | 0 | 0 | 0 | 9 ppb |
| Southwest Metropolitan WSD CO0103723 | 48,648 | 0 | 0 | 0 | 9 ppb |
| Platte Canyon WSD CO0103614 | 19,485 | 0 | 0 | 0 | 9 ppb |
| Willows WD CO0103100 | 19,000 | 0 | 0 | 0 | 9 ppb |
| Cherry Creek Village WD CO0103176 | 9,215 | 0 | 0 | 0 | 9 ppb |
| Rangeview Md CO0103666 | 2,487 | 0 | 0 | 0 | 2 ppb |
| Deer Trail Town of CO0103030 | 1,648 | 0 | 0 | 0 | 0 ppb |
| Foxridge Farms MHP CO0103050 | 1,440 | 0 | 0 | 0 | 1 ppb |
| Byers WSD CO0103010 | 1,000 | 0 | 0 | 0 | 1 ppb |
| Bow Mar WSD CO0103153 | 899 | 0 | 0 | 0 | 9 ppb |
| Columbine Lakes HOA CO0103183 | 843 | 0 | 0 | 0 | 2 ppb |
| The Meadows CO0103504 | 758 | 0 | 0 | 0 | 0 ppb |
| East Valley Md CO0103040 | 230 | 0 | 0 | 0 | 2.3 ppb |
| Stage Run HOA CO0103079 | 150 | 0 | 0 | 0 | 3 ppb |
| Cedar Village MHP CO0103171 | 130 | 0 | 0 | 0 | 0 ppb |
| Meadowood Village MHP CO0103506 | 125 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Arapahoe County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.