Water Quality in Crystal Bay, MN: 4 Violations — Grade C
Grade C · Score 64/100 · 1 water system · Updated 2026-05-03
Crystal Bay's water has moderate compliance issues. Residents in affected areas should consider filtration.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
The compliance record maintained by the EPA for Crystal Bay, MN documents 4 water violations — each tied to a specific public water system and assigned a violation category in the federal Safe Drinking Water dataset.
Water Quality by ZIP Code in Crystal Bay
Water quality varies across Crystal Bay's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 55323 | D | 47 | 4 | 0 | View report → |
Water Quality Overview
Crystal Bay, Minnesota receives a water quality grade of C with an overall score of 64 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 1 water system serving Crystal Bay have accumulated 4 EPA violations (all monitoring/reporting type). These violations are tracked across 1 ZIP codes serving approximately 25 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Crystal Bay's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.
Lead Levels
Lead testing data for Crystal Bay is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.
Radon Risk
Crystal Bay is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.
Water Systems Serving Crystal Bay
Crystal Bay is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 25 people across 1 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
The EPA has taken 10 enforcement actions against water systems serving Crystal Bay. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Crystal Bay
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
EPA Enforcement History
The EPA and state regulators have taken 10 enforcement actions against water systems serving Crystal Bay. Recent actions:
| Date | Action Type |
|---|---|
| 2025-10-16 | State Filed Judgment |
| 2025-10-16 | State Informal Enforcement |
| 2025-09-05 | State Informal Action |
| 2025-07-11 | State Filed Judgment |
| 2025-07-11 | State Informal Enforcement |
| 2025-06-23 | State Informal Action |
| 2025-06-05 | State Informal Action |
| 2025-04-18 | State Filed Judgment |
| 2025-04-18 | State Informal Enforcement |
| 2025-03-28 | State Filed Judgment |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-10-16.
Crystal Bay vs. Nearby Minnesota Cities
How Crystal Bay's water quality compares to similar cities in Minnesota:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Crystal Bay | C | 4 | 1 | 25 |
| Grasston | B | 0 | 1 | 25 |
| Henriette | D | 0 | 1 | 25 |
| Flom | D | 2 | 1 | 26 |
Common Questions About Crystal Bay Water
These are the most common questions residents search for about water quality in Crystal Bay, Minnesota:
Is Crystal Bay water hard or soft? Water hardness varies by source. Crystal Bay's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Crystal Bay tap water? Crystal Bay's water receives a grade of C (64/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Crystal Bay? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Crystal Bay vs. Minnesota Average
Understanding how Crystal Bay compares to the broader Minnesota average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Crystal Bay.
ZIP Codes in Crystal Bay
Crystal Bay spans 1 ZIP code. The ZIP with the lowest water quality score is 55323. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.