B63/100
Parker Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 5,275 residents · South Dakota
What's In Parker's Tap Water?
32
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.68 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2003.
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
PARKER
Population Served
1,025
Water Source
Purchased Groundwater
System ID
SD4600235
TM RURAL WATER DISTRICT
Population Served
4,250
Water Source
Purchased Surface Water
System ID
SD4600999
Frequently Asked Questions About Parker Water
Is Parker tap water safe to drink?
Parker, South Dakota tap water receives a grade of B (63/100), which is considered good. 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 Parker's water?
Of the 32 contaminants tested in Parker'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 Parker have any water quality violations?
Yes, Parker has 47 EPA violation(s) on record, with the most recent in 2010. Violation types include TT, MR, Other. 3 of these are health-based violations, which are the most serious category.
Do I need a water filter in Parker?
Based on EPA data, using a water filter in Parker 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 Parker's tap water come from?
Parker's drinking water is sourced from purchased groundwater and supplied by PARKER and 1 other water system(s). The system serves approximately 5,275 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Parker'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. Parker'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 Parker's water compare to other cities in South Dakota?
Parker's water quality score of 63/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our South Dakota state page to see how all cities in the state compare.
What should I do if I'm concerned about Parker's water quality?
If you have concerns about Parker'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 (PARKER) 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.