A83/100
CRESCO WATERWORKS — Water Quality Report 2026
Serving 3,913 people · Iowa
Water Source
Groundwater
County
—
System ID
IA4515087
Violations
14
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2005.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About CRESCO WATERWORKS
Is CRESCO WATERWORKS water safe to drink?
CRESCO WATERWORKS water receives a grade of A (83/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CRESCO WATERWORKS detected?
31 contaminants were tested in CRESCO WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CRESCO WATERWORKS have any EPA violations?
Yes, CRESCO WATERWORKS has 14 EPA violation(s) on record, with the most recent in 2005. Violation types include MR.
How many people does CRESCO WATERWORKS serve?
CRESCO WATERWORKS serves approximately 3,913 people, Iowa. The system provides water to 1 community: Cresco.
What type of water does CRESCO WATERWORKS provide?
CRESCO WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IA4515087.
How does CRESCO WATERWORKS compare to other utilities in Iowa?
CRESCO WATERWORKS scores 83/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Iowa state page for a full comparison of water systems.