Pesticides in Iowa Well Water

EPA Data 2025 · Risk Level: High

Avg Level

1.026 ppb

EPA Limit

3 ppb

% Above Limit

16.3%

Risk Level

high

Live DataLast updated: April 4, 2026·Source: EPA SDWIS & USGS

Water Quality Details

Contaminant	Pesticides
Category	chemical
Average Level	1.026 ppb
Maximum Level	2.214 ppb
EPA Limit (MCL)	3 ppb
% Wells Above Limit	16.3%
Affected Wells	47,270
Testing Cost	$75
Treatment Cost	$4,260
vs National Avg	-0.367 ppb (-26.3%)

Iowa Well Water Overview

Well Users

290,000

% on Well Water

16.2%

Quality Score

64/100

Highest Risk States for Pesticides

#1Tennessee16.7% above limit #2Iowa16.3% above limit #3Louisiana15.0% above limit #4Colorado14.8% above limit #5Delaware13.0% above limit

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EPA SDWIS & USGS

📊

WellWaterPeek Research TeamData Specialists

Our team analyzes data from EPA SDWIS & USGS to deliver accurate, up-to-date information. All data is verified and cross-referenced with official sources.

✓ EPA SDWIS & USGS✓ Updated 2025

Frequently Asked Questions

Is pesticides a problem in Iowa well water?

In Iowa, pesticides levels average 1.026 ppb, with a maximum recorded level of 2.214 ppb. The EPA limit is 3 ppb. Currently 16.3% of tested wells exceed this limit, affecting approximately 47,270 wells.

How much does it cost to test for pesticides in Iowa?

Testing for pesticides in Iowa typically costs around $75. If treatment is needed, water treatment systems for pesticides cost approximately $4,260.

What is the risk level of pesticides in Iowa well water?

The risk level for pesticides in Iowa is rated as high. The state average of 1.026 ppb is 26.3% below the national average of 1.393 ppb.

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