KEYSTONE WATER SUPPLY
PWSID: IA0640030 · Keystone, IA · Serves 599 people
According to EPA Safe Drinking Water Information System (SDWIS), KEYSTONE WATER SUPPLY (PWSID IA0640030) in Keystone, IA is listed as a CWS water system covering about 599 people. The same extract lists 4 health-based violation records spanning 2018-2021. Those 4 health-based rows for KEYSTONE WATER SUPPLY cover contaminants such as Nitrite, Groundwater Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
KEYSTONE WATER SUPPLY has 4 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. 2 distinct EPA contaminant codes appear in this system's record, including Nitrite, Groundwater Rule. Recorded violations span 2018–2021. Day-to-day primacy enforcement for this system runs through the Iowa 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 Iowa state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- IA0640030
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Keystone, IA
- Population Served
- 599
- Health Violations
- Yes (4)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Nitrite | 3 | 3 |
| Groundwater Rule | 1 | 1 |
Violation History (4)
| Contaminant | Health | Date |
|---|---|---|
| Groundwater Rule | Yes | May 1, 2021 |
| Nitrite | Yes | Apr 1, 2021 |
| Nitrite | Yes | Nov 1, 2020 |
| Nitrite | Yes | Sep 1, 2018 |
Frequently Asked Questions
What does EPA SDWIS list for KEYSTONE WATER SUPPLY?
How many people does KEYSTONE WATER SUPPLY serve?
What violations does KEYSTONE WATER SUPPLY have?
What contaminants have been found in KEYSTONE WATER SUPPLY water?
Compare beyond Iowa
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest KEYSTONE WATER SUPPLY on cumulative violation count (4) and EPA-reported population served (599). Violation-count peers include Santo Domingo Pueblo, Isleta Eastside, PARSHALL-LUCKY MOUND. Population peers include HOYT, CITY OF, NORTONVILLE, CITY OF, Green Isle.
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
KEYSTONE WATER SUPPLY (IA0640030) is drawn from EPA SDWIS. Nearby county systems in this extract include VINTON MUNICIPAL WATER DEPT; BELLE PLAINE WATER DEPT; ATKINS MUNICIPAL WATER WORKS; URBANA WATER SUPPLY. Health-based rows (4 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.