F1/100

Mountain Green Tap Water Quality: Is It Safe to Drink? (2026 Report)

Serving 4,345 residents · Utah

What's In Mountain Green's Tap Water?

2
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
ContaminantDetectedLimit (MCL)Status
Copper (90th percentile)
356.00 mg/L1.30 mg/LOver Limit
Lead (90th percentile)
0.003 mg/L0.015 mg/LAbove 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

Water Utility Details

HIGHLANDS WATER COMPANY INC
Population Served

1,200

Water Source

Groundwater

System ID

UTAH15005

COTTONWOOD MUTUAL
Population Served

3,145

Water Source

Groundwater

System ID

UTAH15013

Frequently Asked Questions About Mountain Green Water

Is Mountain Green tap water safe to drink?

Mountain Green, Utah tap water receives a grade of F (1/100), which is considered failing. 1 contaminant(s) exceed EPA maximum contaminant levels and 195 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.

What contaminants are in Mountain Green's water?

Of the 2 contaminants tested in Mountain Green's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.

Does Mountain Green have any water quality violations?

Yes, Mountain Green has 195 EPA violation(s) on record, with the most recent in 2020. Violation types include MR, TT, MCL. 9 of these are health-based violations, which are the most serious category.

Do I need a water filter in Mountain Green?

Based on EPA data, using a water filter in Mountain Green is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.

Where does Mountain Green's tap water come from?

Mountain Green's drinking water is sourced from groundwater and supplied by HIGHLANDS WATER COMPANY INC and 1 other water system(s). The system serves approximately 4,345 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.

How often is Mountain Green's water tested?

Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Mountain Green's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.

How does Mountain Green's water compare to other cities in Utah?

Mountain Green's water quality score of 1/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our Utah state page to see how all cities in the state compare.

What should I do if I'm concerned about Mountain Green's water quality?

If you have concerns about Mountain Green's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (HIGHLANDS WATER COMPANY INC) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.

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