A83/100
Demotte Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 12,054 residents · Indiana
What's In Demotte's Tap Water?
31
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
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
4
Violations (last 5yr)
2
Unresolved
0
Health-Related
TIER 3Unresolved
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 – December 31, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved
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 – December 31, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Monitoring violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2023 – March 9, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: November 11, 2021 – December 14, 2021Rule: Total Coliform RuleEnforcement: 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
NORTHWEST JASPER REGIONAL WATER DISTRICT
Population Served
4,054
Water Source
Groundwater
System ID
IN5237015
CUII - TWIN LAKES
Population Served
8,000
Water Source
Groundwater
System ID
IN5245046
Frequently Asked Questions About Demotte Water
Is Demotte tap water safe to drink?
Demotte, Indiana tap water receives a grade of A (83/100), which is considered excellent. Out of 32 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 2 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Demotte's water?
Of the 32 contaminants tested in Demotte'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 Demotte have any water quality violations?
Yes, Demotte has 23 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, RPT, Other. None of these are classified as health-based violations.
Do I need a water filter in Demotte?
Based on EPA data, using a water filter in Demotte 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 Demotte's tap water come from?
Demotte's drinking water is sourced from groundwater and supplied by NORTHWEST JASPER REGIONAL WATER DISTRICT and 1 other water system(s). The system serves approximately 12,054 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Demotte'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. Demotte'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 Demotte's water compare to other cities in Indiana?
Demotte's water quality score of 83/100 earns a grade of A, which is considered excellent. This places Demotte among the better-performing water systems in Indiana. Visit our Indiana state page to see how all cities in the state compare.
What should I do if I'm concerned about Demotte's water quality?
If you have concerns about Demotte'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 (NORTHWEST JASPER REGIONAL WATER DISTRICT) 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.