B65/100
GREATROCK NORTH WSD — Water Quality Report 2026
Serving 1,250 people · Colorado
Water Source
Groundwater
County
—
System ID
CO0101063
Violations
24
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2011.
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 GREATROCK NORTH WSD
Is GREATROCK NORTH WSD water safe to drink?
GREATROCK NORTH WSD water receives a grade of B (65/100), which is considered good. Out of 21 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has GREATROCK NORTH WSD detected?
21 contaminants were tested in GREATROCK NORTH WSD's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does GREATROCK NORTH WSD have any EPA violations?
Yes, GREATROCK NORTH WSD has 24 EPA violation(s) on record, with the most recent in 2011. Violation types include Other, MR, MCL. 2 are health-based violations.
How many people does GREATROCK NORTH WSD serve?
GREATROCK NORTH WSD serves approximately 1,250 people, Colorado.
What type of water does GREATROCK NORTH WSD provide?
GREATROCK NORTH WSD sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CO0101063.
How does GREATROCK NORTH WSD compare to other utilities in Colorado?
GREATROCK NORTH WSD scores 65/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Colorado state page for a full comparison of water systems.