Water Quality Report

Diamond, MO (64840): 9 Violations Recorded for Mapped Water Systems

EPA data combined for 4 water systems mapped to this ZIP (largest mapped system: Diamond Public Water System)

EPA records for the water systems mapped to 64840 in Diamond, MO contain 9 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources

Latest air quality, EPA records and weather alerts Current data temporarily unavailable

Current EPA violation data unavailable

Safety Score N/A

Water Quality Concerns 9 non-health-based violation records in EPA data

Lead Risk Below action level 0.0014 mg/L, 90th percentile, sample period ending 2023-12-31

NFIP Claim History Claim records 4 claims

Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

Water EPA records for water systems mapped to this ZIP show 9 violations (non-health) (since 2021).
Lead The reported 90th-percentile lead result of 0.0014 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
Radon EPA Zone 2 - county-level radon potential, not a home measurement.
Flood 4 cumulative NFIP claim records. Claim evidence is historical, not current map coverage.

Contaminant Summary

Violations on record (not health-based)

9 violations

Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record Consumer Confidence Report: source date or period is not present in ZipCheckup's accepted source record

Water Systems

926

People Served

Health Violations (since 2021)

Groundwater

Water Source

0.00139 mg/L

Reported Lead Result

Zone 2

County Radon Potential · Moderate

$215K

Median Home Value33% above state median ($162K)

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Score Breakdown

Overall Home Safety Score: Score unavailable

Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.

Canonical components

EPA water compliance

62/100

Observed

PFAS MCL screen

Unknown

Evidence missing

EPA radon zone

50/100

Observed

Annual EPA AirData AQI

Unknown

Evidence missing

Required domains

Drinking water

Unknown

Indoor environment

50/100

Outdoor environment

Unknown

Coverage: 2 of 4 components and 1 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (7) MODERATE

Your Water System

ZIP code 64840 in Diamond, Missouri is mapped to the water system Diamond Public Water System (EPA ID: MO5010217). This system provides water to approximately 926 people from groundwater sources.

There are 4 community water systems serving this area.

Water Systems Serving This Area

System Name	EPA ID	Population	Source
Diamond Public Water System	MO5010217	926	Groundwater
Mo American Joplin	MO5010413	73,728	Surface water
Jasper County Pwsd 3	MO5021252	1,900	Groundwater
Duenweg Public Water System	MO5010227	1,469	Groundwater

Other Water Quality Reports in Missouri

63005 (Chesterfield) - 3 violations recorded for mapped water systems
63006 (Chesterfield)
63010 (Arnold) - 2 violations recorded for mapped water systems
63011 (Ballwin) - 1 violation recorded for mapped water systems
63012 (Barnhart) - 11 violations recorded for mapped water systems
63013 (Beaufort) - 6 violations recorded for mapped water systems
63014 (Berger) - 3 violations recorded for mapped water systems
63015 (Catawissa) - 4 violations recorded for mapped water systems
63016 (Cedar Hill) - 6 violations recorded for mapped water systems
63017 (Chesterfield)
63019 (Crystal City) - 7 violations recorded for mapped water systems
63020 (De Soto) - 9 violations recorded for mapped water systems
63021 (Ballwin) - 4 violations recorded for mapped water systems
63022 (Ballwin)
63023 (Dittmer) - 1 violation recorded for mapped water systems
63024 (Ballwin)
63025 (Eureka) - 6 violations recorded for mapped water systems
63026 (Fenton) - 5 violations recorded for mapped water systems
63028 (Festus) - 15 violations recorded for mapped water systems
63030 (Fletcher)

Nearby Water Quality Reports

64841 (Duenweg) - 7 mi - 8 violations recorded for mapped water systems
64844 (Granby) - 8 mi - 5 violations recorded for mapped water systems
64864 (Saginaw) - 8 mi
64850 (Neosho) - 10 mi - 12 violations recorded for mapped water systems
64836 (Carthage) - 11 mi - 19 violations recorded for mapped water systems
64804 (Joplin) - 11 mi - 13 violations recorded for mapped water systems
64853 (Newtonia) - 12 mi
64835 (Carterville) - 12 mi - 9 violations recorded for mapped water systems
64859 (Reeds) - 12 mi - 7 violations recorded for mapped water systems
64802 (Joplin) - 12 mi

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Diamond Public Water System (MO5010217) on EPA.gov.

5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →

Environmental Hazards (11) HIGH

Home & Infrastructure (6) OK

Cost & Community (8) OK

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Diamond

Based on local data for ZIP 64840, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Home & Flood Insurance

The ZIP code for this report in Diamond has 4 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.

Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote

Check Your Flood Zone (Free)

FEMA flood map lookup - see if your property is in a flood zone

Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)

Roofing Inspection & Repair

Active weather alerts in Missouri increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.

Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500

Estimate Your Home Insurance Needs

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 64840 safe to drink?

EPA SDWIS records 9 violations since 2021 across the water systems mapped to ZIP 64840 (primary system: Diamond Public Water System), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 64840's water come from?

The recorded water source for Diamond Public Water System, a system mapped to ZIP code 64840, is Groundwater. This system serves approximately 926 people.

How can I get my water tested in Diamond?

If Diamond Public Water System supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

Is lead a concern in 64840 tap water?

The Lead and Copper Rule record selected for 64840 reports a 90th-percentile lead result of 0.00139 mg/L for a water system mapped to this ZIP (record date 2023-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.

What is the radon risk for 64840?

64840 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Newton County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

What does the NFIP claim history show for ZIP 64840?

FEMA records contain 4 flood insurance claims filed in ZIP code 64840; the recorded rated-zone value (the most frequent one if there are several claims) is C, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.

How to cite this page

APA

ZipCheckup. (2026). Diamond, MO (64840): 9 Violations Recorded for Mapped Water Systems. https://zipcheckup.com/report/64840/

BibTeX

@misc{zipcheckup-report-64840,
  author = {{ZipCheckup}},
  title  = {{Diamond, MO (64840): 9 Violations Recorded for Mapped Water Systems}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/64840/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 64840

ZIP Code	City, State	Distance	Grade	Violations
64841	Duenweg, MO	6.8 mi	N/A	8
64844	Granby, MO	7.5 mi	N/A	5
64864	Saginaw, MO	8.3 mi	N/A	0
64850	Neosho, MO	10.0 mi	N/A	12
64836	Carthage, MO	10.6 mi	B	19
64804	Joplin, MO	10.8 mi	N/A	13
64853	Newtonia, MO	11.6 mi	N/A	0
64835	Carterville, MO	11.9 mi	N/A	9
64859	Reeds, MO	11.9 mi	N/A	7
64802	Joplin, MO	11.9 mi	N/A	0