TapSafetyReport
B70/100

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

Serving 2,010 residents · Colorado

What's In Lasalle's Tap Water?

1
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals

EPA Violation History

17

Violations (last 5yr)

1

Unresolved

0

Health-Related

TIER 3Resolved

Reporting Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 2, 2025 – July 30, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved

Violation related to Turbidity

When: November 15, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2024 – June 11, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved

Violation related to Turbidity

When: May 1, 2024 – June 25, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Violation related to Turbidity

When: February 1, 2024 – June 25, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2024 – March 31, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2024 – March 31, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Violation related to Turbidity

When: November 1, 2023 – June 25, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Violation related to Turbidity

When: August 1, 2023 – June 25, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Violation related to Turbidity

When: May 1, 2023 – June 25, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Violation related to Turbidity

When: February 1, 2023 – June 25, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Violation related to Turbidity

When: November 1, 2022 – June 25, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Violation related to Turbidity

When: August 1, 2022 – June 25, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2022 – June 30, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2022 – June 30, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway

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

LA SALLE TOWN OF
Population Served

2,010

Water Source

Purchased Surface Water

System ID

CO0162466

Frequently Asked Questions About Lasalle Water

Is Lasalle tap water safe to drink?

Lasalle, Colorado tap water receives a grade of B (70/100), which is considered good. Out of 1 contaminants tested, none exceed EPA maximum contaminant levels (MCLs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.

What contaminants are in Lasalle's water?

1 contaminants were tested in Lasalle's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.

Does Lasalle have any water quality violations?

Yes, Lasalle has 26 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, Other, MR. 1 of these are health-based violations, which are the most serious category.

Do I need a water filter in Lasalle?

Lasalle water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. All contaminants are within health goals.

Where does Lasalle's tap water come from?

Lasalle's drinking water is sourced from purchased surface water and supplied by LA SALLE TOWN OF. The system serves approximately 2,010 people. Surface water sources include rivers, lakes, and reservoirs.

How often is Lasalle'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. Lasalle'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 Lasalle's water compare to other cities in Colorado?

Lasalle's water quality score of 70/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Colorado state page to see how all cities in the state compare.

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

If you have concerns about Lasalle'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 (LA SALLE TOWN OF) 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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