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Non-Transient Non-Community Water System · PWS IA8222101

Linwood Mining and Minerals Corp

Davenport, Iowa 52804 - drinking water served from groundwater sources to 125 people, tracked in EPA SDWIS and UCMR5.

125
People served
102
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 102 drinking-water violations at Linwood Mining and Minerals Corp, 2% of them health-based - above the Iowa per-system average.

102
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
125
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Linwood Mining and Minerals Corp

Linwood Mining and Minerals Corp is a private-owned non-transient non-community water system that delivers drinking water to 125 residents in Davenport, Iowa (Scott County) through 9 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 102 total violations for this system , of which 2 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 88 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 16 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%).

Linwood Mining and Minerals Corp's 102 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
125
Total Violations
102
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
9
County
Scott
School/Daycare
No
MCL Violations
0
Monitoring Violations
88
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 16 2015
Nitrite MR 16 2014
Nitrate MR 16 2014
Antimony, Total MR 4 2006
Barium MR 4 2006
Cadmium MR 4 2006
Chromium MR 4 2006
Selenium MR 4 2006
Thallium, Total MR 4 2006
Arsenic MR 4 2006
Mercury MR 4 2006
Revised Total Coliform Rule MON 4 2023
Fluoride MR 4 2006
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 2 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 Linwood Mining and Minerals Corp.

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 IA8222101 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 Revised Total Coliform Rule MON 4 SDWIS / IA8222101 / 8000
2015 Coliform (TCR) MR 16 SDWIS / IA8222101 / 3100
2015 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 2 SDWIS / IA8222101 / 0400
2014 Nitrite MR 16 SDWIS / IA8222101 / 1041
2014 Nitrate MR 16 SDWIS / IA8222101 / 1040
2006 Antimony, Total MR 4 SDWIS / IA8222101 / 1074
2006 Barium MR 4 SDWIS / IA8222101 / 1010
2006 Cadmium MR 4 SDWIS / IA8222101 / 1015
2006 Chromium MR 4 SDWIS / IA8222101 / 1020
2006 Selenium MR 4 SDWIS / IA8222101 / 1045
2006 Thallium, Total MR 4 SDWIS / IA8222101 / 1085
2006 Arsenic MR 4 SDWIS / IA8222101 / 1005
2006 Mercury MR 4 SDWIS / IA8222101 / 1035
2006 Fluoride MR 4 SDWIS / IA8222101 / 1025

How Linwood Mining and Minerals Corp Compares

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

Metric Linwood Mining and Minerals Corp Iowa avg Federal benchmark
Total violations 102 77 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 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 125 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 Linwood Mining and Minerals Corp water safe to drink? ▼
Linwood Mining and Minerals Corp (PWS ID: IA8222101) has 102 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 125 people using Groundwater sources.
How many people does Linwood Mining and Minerals Corp serve? ▼
Linwood Mining and Minerals Corp serves 125 people in Davenport, Iowa. It is a Private-owned system using Groundwater water sources with 9 service connections.
What type of violations does Linwood Mining and Minerals Corp have? ▼
Linwood Mining and Minerals Corp has 102 total violations: 2 health-based violations (MCL exceedances or treatment failures), 88 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Linwood Mining and Minerals Corp water? ▼
No PFAS testing data is available for Linwood Mining and Minerals Corp under the EPA's UCMR5 monitoring program.
What water source does Linwood Mining and Minerals Corp use? ▼
Linwood Mining and Minerals Corp 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.