A91/100
RIM ROCK RANCH — Water Quality Report 2026
Serving 1,065 people · Texas
Water Source
Groundwater Under Influence of Surface Water
County
—
System ID
TX0460211
Violations
6
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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 RIM ROCK RANCH
Is RIM ROCK RANCH water safe to drink?
RIM ROCK RANCH water receives a grade of A (91/100), which is considered excellent. 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 RIM ROCK RANCH detected?
21 contaminants were tested in RIM ROCK RANCH's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does RIM ROCK RANCH have any EPA violations?
Yes, RIM ROCK RANCH has 6 EPA violation(s) on record, with the most recent in 2020. Violation types include Other, MR.
How many people does RIM ROCK RANCH serve?
RIM ROCK RANCH serves approximately 1,065 people, Texas.
What type of water does RIM ROCK RANCH provide?
RIM ROCK RANCH sources its water from groundwater under influence of surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is TX0460211.
How does RIM ROCK RANCH compare to other utilities in Texas?
RIM ROCK RANCH scores 91/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Texas state page for a full comparison of water systems.