ADA
PWSID: OK2006201 · Ada, OK · Serves 22,600 people
According to EPA Safe Drinking Water Information System (SDWIS), ADA (PWSID OK2006201) in Ada, OK is listed as a CWS water system covering about 22,600 people. The same extract lists 3 health-based violation records spanning 1985-2024. Those 3 health-based rows for ADA cover contaminants such as LEAD AND COPPER RULE REVISIONS, Coliform (TCR), Coliform (Pre-TCR); they remain historical EPA registry entries, not a current compliance or drinkability score.
ADA has 3 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 3 distinct EPA contaminant codes appear in this system's record, including LEAD AND COPPER RULE REVISIONS, Coliform (TCR), Coliform (Pre-TCR). Recorded violations span 1985–2024. Day-to-day primacy enforcement for this system runs through the Oklahoma drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Oklahoma state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- OK2006201
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Ada, OK
- Population Served
- 22,600
- Health Violations
- Yes (3)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| LEAD AND COPPER RULE REVISIONS | 1 | 1 |
| Coliform (TCR) | 1 | 1 |
| Coliform (Pre-TCR) | 1 | 1 |
Violation History (3)
| Contaminant | Health | Date |
|---|---|---|
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| Coliform (TCR) | Yes | Aug 1, 1998 |
| Coliform (Pre-TCR) | Yes | Apr 1, 1985 |
Frequently Asked Questions
What does EPA SDWIS list for ADA?
How many people does ADA serve?
What violations does ADA have?
What contaminants have been found in ADA water?
Compare beyond Oklahoma
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest ADA on cumulative violation count (3) and EPA-reported population served (22,600). Violation-count peers include Mohegan Tribal Utility Authority, RED CLIFF NORTH, Tesuque Pueblo. Population peers include NAS PENSACOLA / CORRY STATION, ST JOHN'S WATER (SC1020002), HIGHLAND S & W AUTH BEAVERDAM.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
ADA (OK2006201) is drawn from EPA SDWIS. Nearby county systems in this extract include PONTOTOC CO RWD # 7; PONTOTOC CO RWD # 8; HUGHES CO. RWD #6 (GERTY); PONTOTOC CO RWD # 9. Health-based rows (3 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.