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Non-Transient Non-Community Water System · PWS IA2326104

Equistar Chemicals LP

Clinton, Iowa 52732 - drinking water served from groundwater sources to 715 people, tracked in EPA SDWIS and UCMR5.

715
People served
44
EPA violations
4
Health-based
Untested
UCMR5 result

The verdict

EPA records 44 drinking-water violations at Equistar Chemicals LP, 9% of them health-based - below the Iowa per-system average.

44
Total EPA violations on record
9%
Health-based (MCL / treatment failure)
715
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Equistar Chemicals LP

Equistar Chemicals LP is a private-owned non-transient non-community water system that delivers drinking water to 715 residents in Clinton, Iowa (Clinton County) through 21 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 44 total violations for this system , of which 4 (9%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 28 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is LASSO, recorded in 4 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Iowa, EPA tracks 1,795 public water systems serving 3,114,444 people, with 138,271 cumulative violations and 27,946 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 77 violations. Statewide, 127 of 152 UCMR5-tested systems have reported PFAS detections (83.6%).

Equistar Chemicals LP's 44 violations sit below the Iowa average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
715
Total Violations
44
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
21
County
Clinton
School/Daycare
No
MCL Violations
4
Monitoring Violations
28
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
LASSO MR 4 2018
Atrazine MR 4 2018
Di(2-ethylhexyl) adipate MR 4 2018
Di(2-ethylhexyl) phthalate MR 4 2018
Simazine MR 4 2018
Nitrite MR 4 1997
Coliform (TCR) MCL 4 2011
CYANIDE MR 4 2015

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Equistar Chemicals LP.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID IA2326104 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Iowa Drinking Water Authority

Iowa's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find IA regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2018 LASSO MR 4 SDWIS / IA2326104 / 2051
2018 Atrazine MR 4 SDWIS / IA2326104 / 2050
2018 Di(2-ethylhexyl) adipate MR 4 SDWIS / IA2326104 / 2035
2018 Di(2-ethylhexyl) phthalate MR 4 SDWIS / IA2326104 / 2039
2018 Simazine MR 4 SDWIS / IA2326104 / 2037
2015 CYANIDE MR 4 SDWIS / IA2326104 / 1024
2011 Coliform (TCR) MCL 4 SDWIS / IA2326104 / 3100
1997 Nitrite MR 4 SDWIS / IA2326104 / 1041

How Equistar Chemicals LP Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Equistar Chemicals LP Iowa avg Federal benchmark
Total violations 44 77 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 4 15.6 Indicates a contaminant exceeded a federal MCL
PFAS detection None 83.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 715 1,735 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,795 regulated public water systems in Iowa.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Equistar Chemicals LP water safe to drink? ▼
Equistar Chemicals LP (PWS ID: IA2326104) has 44 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 715 people using Groundwater sources.
How many people does Equistar Chemicals LP serve? ▼
Equistar Chemicals LP serves 715 people in Clinton, Iowa. It is a Private-owned system using Groundwater water sources with 21 service connections.
What type of violations does Equistar Chemicals LP have? ▼
Equistar Chemicals LP has 44 total violations: 4 health-based violations (MCL exceedances or treatment failures), 28 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Equistar Chemicals LP water? ▼
No PFAS testing data is available for Equistar Chemicals LP under the EPA's UCMR5 monitoring program.
What water source does Equistar Chemicals LP use? ▼
Equistar Chemicals LP uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.