MALLARD WATER SUPPLY
PWSID: IA7450019 · Mallard, IA · Serves 257 people
According to EPA Safe Drinking Water Information System (SDWIS), MALLARD WATER SUPPLY (PWSID IA7450019) in Mallard, IA is listed as a CWS water system covering about 257 people. The same extract lists 53 health-based violation records spanning 2017-2024. Those 53 health-based rows for MALLARD WATER SUPPLY cover contaminants such as Arsenic; they remain historical EPA registry entries, not a current compliance or drinkability score.
MALLARD WATER SUPPLY has 53 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. 1 distinct EPA contaminant code appears in this system's record, including Arsenic. Recorded violations span 2017–2024. 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)
- IA7450019
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Mallard, IA
- Population Served
- 257
- Health Violations
- Yes (53)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Arsenic | 53 | 53 |
Violation History (53)
| Contaminant | Health | Date |
|---|---|---|
| Arsenic | Yes | Oct 1, 2024 |
| Arsenic | Yes | Oct 1, 2024 |
| Arsenic | Yes | Oct 1, 2024 |
| Arsenic | Yes | Jul 1, 2024 |
| Arsenic | Yes | Jul 1, 2024 |
| Arsenic | Yes | Jul 1, 2024 |
| Arsenic | Yes | Jul 1, 2024 |
| Arsenic | Yes | Apr 1, 2024 |
| Arsenic | Yes | Apr 1, 2024 |
| Arsenic | Yes | Apr 1, 2024 |
| Arsenic | Yes | Apr 1, 2024 |
| Arsenic | Yes | Jan 1, 2024 |
| Arsenic | Yes | Jan 1, 2024 |
| Arsenic | Yes | Jan 1, 2024 |
| Arsenic | Yes | Apr 1, 2022 |
| Arsenic | Yes | Apr 1, 2022 |
| Arsenic | Yes | Apr 1, 2022 |
| Arsenic | Yes | Apr 1, 2022 |
| Arsenic | Yes | Jan 1, 2022 |
| Arsenic | Yes | Jan 1, 2022 |
| Arsenic | Yes | Jan 1, 2022 |
| Arsenic | Yes | Jan 1, 2022 |
| Arsenic | Yes | Oct 1, 2021 |
| Arsenic | Yes | Oct 1, 2021 |
| Arsenic | Yes | Oct 1, 2021 |
| Arsenic | Yes | Oct 1, 2021 |
| Arsenic | Yes | Jul 1, 2021 |
| Arsenic | Yes | Jul 1, 2021 |
| Arsenic | Yes | Jul 1, 2021 |
| Arsenic | Yes | Jul 1, 2021 |
| Arsenic | Yes | Apr 1, 2021 |
| Arsenic | Yes | Apr 1, 2021 |
| Arsenic | Yes | Apr 1, 2021 |
| Arsenic | Yes | Jan 1, 2021 |
| Arsenic | Yes | Jan 1, 2021 |
| Arsenic | Yes | Jan 1, 2021 |
| Arsenic | Yes | Oct 1, 2020 |
| Arsenic | Yes | Oct 1, 2020 |
| Arsenic | Yes | Oct 1, 2020 |
| Arsenic | Yes | Jul 1, 2020 |
| Arsenic | Yes | Jul 1, 2020 |
| Arsenic | Yes | Apr 1, 2020 |
| Arsenic | Yes | Apr 1, 2020 |
| Arsenic | Yes | Jan 1, 2020 |
| Arsenic | Yes | Jan 1, 2020 |
| Arsenic | Yes | Oct 1, 2019 |
| Arsenic | Yes | Oct 1, 2019 |
| Arsenic | Yes | Jul 1, 2019 |
| Arsenic | Yes | Jul 1, 2019 |
| Arsenic | Yes | Apr 1, 2019 |
| Arsenic | Yes | Apr 1, 2019 |
| Arsenic | Yes | Oct 1, 2017 |
| Arsenic | Yes | Oct 1, 2017 |
Frequently Asked Questions
What does EPA SDWIS list for MALLARD WATER SUPPLY?
How many people does MALLARD WATER SUPPLY serve?
What violations does MALLARD WATER SUPPLY have?
What contaminants have been found in MALLARD WATER SUPPLY water?
Compare beyond Iowa
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest MALLARD WATER SUPPLY on cumulative violation count (53) and EPA-reported population served (257). Violation-count peers include CROW AGENCY WATER SYSTEM, OAK CREEK WATER DISTRICT, SMITHLAND WATER & SEWER.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
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About This Data
MALLARD WATER SUPPLY (IA7450019) is drawn from EPA SDWIS. Nearby county systems in this extract include EMMETSBURG MUNICIPAL WATER DEPARTMENT; GRAETTINGER MUNICIPAL WATER SUPPLY; RUTHVEN WATER SUPPLY; WEST BEND WATER DEPARTMENT. Health-based rows (53 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.