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Transient Non-Community Water System · PWS IA4965201

Preston Valley Golf

Preston, Iowa 52069 - drinking water served from groundwater sources to 100 people, tracked in EPA SDWIS and UCMR5.

100
People served
273
EPA violations
50
Health-based
Untested
UCMR5 result

The verdict

EPA records 273 drinking-water violations at Preston Valley Golf, 18% of them health-based - above the Iowa per-system average.

273
Total EPA violations on record
18%
Health-based (MCL / treatment failure)
100
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Preston Valley Golf

Preston Valley Golf is a private-owned transient non-community water system that delivers drinking water to 100 residents in Preston, Iowa (Jackson County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 273 total violations for this system , of which 50 (18%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 142 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 97 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, 32 of 152 UCMR5-tested systems have reported PFAS detections (21.1%).

Preston Valley Golf's 273 violations sit above 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
100
Total Violations
273
Health-Based Violations
50
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
1
County
Jackson
School/Daycare
No
MCL Violations
27
Monitoring Violations
142
Treatment Tech Violations
23

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 97 2015
Public Notice Other 74 2023
Coliform (TCR) MCL 27 2011
Nitrate MR 24 2015
Revised Total Coliform Rule TT 23 2021
Revised Total Coliform Rule MON 11 2023
E. COLI MR 10 2019
Groundwater Rule Other 4 2019

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 Preston Valley Golf.

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 IA4965201 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
2023 Public Notice Other 74 SDWIS / IA4965201 / 7500
2023 Revised Total Coliform Rule MON 11 SDWIS / IA4965201 / 8000
2021 Revised Total Coliform Rule TT 23 SDWIS / IA4965201 / 8000
2019 E. COLI MR 10 SDWIS / IA4965201 / 3014
2019 Groundwater Rule Other 4 SDWIS / IA4965201 / 0700
2015 Coliform (TCR) MR 97 SDWIS / IA4965201 / 3100
2015 Nitrate MR 24 SDWIS / IA4965201 / 1040
2011 Coliform (TCR) MCL 27 SDWIS / IA4965201 / 3100

How Preston Valley Golf Compares

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

Metric Preston Valley Golf Iowa avg Federal benchmark
Total violations 273 77 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 50 15.6 Indicates a contaminant exceeded a federal MCL
PFAS detection None 21.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 100 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 Preston Valley Golf water safe to drink? ▼
Preston Valley Golf (PWS ID: IA4965201) has 273 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 100 people using Groundwater sources.
How many people does Preston Valley Golf serve? ▼
Preston Valley Golf serves 100 people in Preston, Iowa. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Preston Valley Golf have? ▼
Preston Valley Golf has 273 total violations: 50 health-based violations (MCL exceedances or treatment failures), 142 monitoring/reporting violations, and 23 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Preston Valley Golf water? ▼
No PFAS testing data is available for Preston Valley Golf under the EPA's UCMR5 monitoring program.
What water source does Preston Valley Golf use? ▼
Preston Valley Golf uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.