WATER QUALITY MO

Water Quality in Cook Sta, MO: No Violations — Grade C

Grade C · Score 63/100 · 1 water system · Updated 2026-05-03

Cook Sta'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

Federal compliance data for Cook Sta, MO: no violations across 1 monitored system.

Water Grade

Total Violations

Water Systems

ZIPs with Violations

ZIP Codes Monitored

Water Quality by ZIP Code in Cook Sta

Water quality varies across Cook Sta's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.

ZIP Code	Grade	Score	Violations	Health
65449	C	63	0	0	View report →

Water Quality Overview

Cook Sta, Missouri receives a water quality grade of C with an overall score of 63 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).

No EPA violations have been recorded for the 1 water system serving Cook Sta. This is a positive indicator, though it does not guarantee the absence of all contaminants — some substances (like PFAS) are not yet fully regulated.

What Grade C Means

A grade of C indicates moderate compliance issues. Cook Sta'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 Cook Sta is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.

With 63% of homes built before 1986, Cook Sta has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.

Radon Risk

Cook Sta is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.

Water Systems Serving Cook Sta

Cook Sta is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 20,800 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

How to Check Your Water in Cook Sta

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

Cook Sta vs. Nearby Missouri Cities

How Cook Sta's water quality compares to similar cities in Missouri:

City	Grade	Systems	Population
Cook Sta	C	1	20,800
Saint James	C	1	20,800
Vichy	C	1	20,800
Saint Louis	D	3	21,578

Common Questions About Cook Sta Water

These are the most common questions residents search for about water quality in Cook Sta, Missouri:

Is Cook Sta water hard or soft? Water hardness varies by source. Cook Sta's 1 water system uses a single source. Check your ZIP code report for specific hardness data.

Can I drink Cook Sta tap water? Cook Sta's water receives a grade of C (63/100). No health-based violations have been recorded, but home testing is always recommended.

What is the best water filter for Cook Sta? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.

Cook Sta vs. Missouri Average

Understanding how Cook Sta compares to the broader Missouri 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 Cook Sta.

ZIP Codes in Cook Sta

Cook Sta spans 1 ZIP code. 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.

Frequently Asked Questions

Is Cook Sta tap water safe to drink?

Cook Sta's water receives a grade of C (63/100). Some areas have recorded violations — residents in affected ZIP codes may want to consider water testing.

What contaminants are found in Cook Sta water?

Cook Sta water systems have zero recorded violations. While this is excellent, the EPA recommends annual testing as contaminants can enter your water through home plumbing.

How many water violations does Cook Sta have?

Cook Sta has 0 total EPA violations across 1 water system. 0 of 1 ZIP codes have at least one violation.

How many water systems serve Cook Sta?

Cook Sta is served by 1 public water system supplying drinking water across 1 ZIP codes. Water quality can vary between systems — check your specific ZIP code for localized data.

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