CITY REPORT MO

Diamond, MO: 9 Violations - Home Safety Score unavailable

1 ZIP code · 4 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
4
Water Systems
1
ZIPs Linked to Systems with Violations
Zone 2
County Radon Potential (Moderate)
$215K
Median Home Value

What You Should Know About Diamond Water

  • Your city's water systems recorded 9 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.005 mg/L.
  • Homes built before 1986: 46% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 14.77.

Who Supplies Your Water in Diamond

Federal records list 4 water systems tied to Diamond, MO. Of those, 3 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.

Overview

We track home safety data for 1 ZIP code in Diamond, Missouri (population ~3,566), covering 4 community water systems serving approximately 78,023 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Water Sources

Diamond water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0050 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Lead and Copper Rule Revisions Treatment Technique 6 1
Haloacetic Acids (HAA5) Disinfection Byproducts 2 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1
Lead and Copper Rule Treatment Technique 2 1
Consumer Confidence Rule Reporting 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
64840 — 9 0 Diamond Public Water System

All ZIP Codes in Diamond

  • 64840 - 9 violations recorded for mapped water systems

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Health Outcomes in Diamond

10.7%
Asthma (US: 9.8%)
13.4%
Diabetes (US: 10.4%)
18.1%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 10.7% ↑
Diabetes 13.4% ↑
Mental Health 18.1% ↑

Vertical line = national average. ■ Above national · ■ Below national

Top Contaminants in Diamond Water

Lead and Copper Rule Revisions 6 violations
Treatment Technique
Haloacetic Acids (HAA5) 2 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.06 mg/L
Increased cancer risk with long-term exposure above the MCL
Total Trihalomethanes (TTHM) 2 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L
Increased cancer risk with long-term exposure above the MCL

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Housing & Infrastructure in Diamond

1998
Median Build Year
46%
Built Before 1986
25%
Built Before 1970
Copper
Likely Pipe Material

With 46% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Homes on the same street in Diamond can differ: one may keep original pre-1986 plumbing while another has been replumbed, so the 1998 median is only a starting point.

1998
Median Year Built
46%
Pre-1986 (lead solder era; lead paint banned 1978)
25%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (25%) 1970–1986 (21%) Post-1986 (54%)

Most homes in Diamond were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Lead Exposure Risk for Children in Diamond

46%
Homes Built Before 1986
0.005
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical NFIP Claim Context in Diamond

4
Total FEMA Flood Claims
$13,744
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Diamond contains 4 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $13,744. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

How many violations are on record for water systems serving Diamond?
EPA records list 9 EPA violations for Diamond water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Diamond water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Diamond is 0.005 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Diamond?
Our records map 4 water systems to 1 ZIP code in Diamond. The related population figure in our data is approximately 3,566 people; it is not a count of people served citywide.
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How to cite this page

APA ZipCheckup. (2026). Diamond, MO: 9 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/mo/diamond/
BibTeX
@misc{zipcheckup-cities-mo-diamond,
  author = {{ZipCheckup}},
  title  = {{Diamond, MO: 9 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/mo/diamond/}
}

Page version: October 2026.

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