CITY REPORT MO

Shell Knob, MO - Home Safety Score unavailable

1 ZIP code · 5 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs with Violations
Zone 2
Radon Risk (Moderate)
$253K
Median Home Value
$1,600
Est. Remediation (0.6% of home value)

Shell Knob Water: The Quick Version

  • Your city's water systems recorded 103 violations in the past 5 years.
  • Average lead level: 0.0132 mg/L.
  • Homes built before 1986: 41% - older plumbing may contain lead solder.
  • Estimated remediation: $1,600 per household.
  • CDC health risk index: 16.65 - above typical levels.

Water Systems Serving Shell Knob

Residential water service in Shell Knob, MO is divided among 3 separate utilities, drawn from 5 systems on file with federal regulators.

Overview

We track home safety data for 1 ZIP code in Shell Knob, Missouri, covering 5 community water systems serving approximately 3,957 people. 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

Shell Knob water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0132 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

Dominant radon zone: Zone 2 (Moderate Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Lead and Copper Rule Treatment Technique 12 1
PFOA PFAS 8 1
PFNA PFAS 8 1
Monochloroacetic Acid Disinfection Byproducts 8 1
Dichloroacetic Acid Disinfection Byproducts 8 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
65747 103 0 Mo Ark Water Company

All ZIP Codes in Shell Knob

Data Sources

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

CDC Health Data for Shell Knob

10.4%
Asthma (US: 9.8%)
15.6%
Diabetes (US: 10.4%)
15.9%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.4% ↑
Diabetes 15.6% ↑
Mental Health 15.9% ↑

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Shell Knob

Lead and Copper Rule 12 violations
Treatment Technique
Developmental delays in children, kidney damage
PFOA 8 violations
PFAS · EPA limit: 0.000004 mg/L
PFNA 8 violations
PFAS · EPA limit: 0.00001 mg/L

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

How Old Is Shell Knob's Housing Stock?

1999
Median Build Year
41%
Built Before 1986
7%
Built Before 1970
Copper
Likely Pipe Material

With 41% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

Shell Knob's residential inventory spans multiple construction eras, with the median build year of 1999 landing in a zone where pre- and post-1986 homes are both well represented. That split matters because homes built before 1986 may contain lead-soldered copper joints - a plumbing practice banned that year - while those built before 1970 face the additional possibility of lead pipes in the service line. Whether a specific household sits on the older or newer end of this distribution is the primary variable shaping its individual exposure risk.

1999
Median Year Built
41%
Pre-1986 (Lead Paint Risk)
7%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (7%) 1970–1986 (34%) Post-1986 (59%)

Most homes in Shell Knob were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Shell Knob: Remediation Cost in Perspective

Setting Shell Knob remediation figures against its property market, the resulting ratio sits comfortably in the low tier - a classification that reflects the kind of household financial position where most homeowners can identify documented issues, schedule the work, and absorb the cost without it registering as a significant budget disruption.

Median Home Value
$252,600
Est. Remediation
$1,600
Remediation as % of home value 0.6%

Remediation costs in Shell Knob are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 44% above the Missouri average.

Protecting Children from Lead in Shell Knob

41%
Homes Built Before 1986
0.0132
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Reading the local data together points toward a structural gap that matters more here than in low-exposure communities. 41% of Shell Knob stock comes from the pre-rule era, and citywide monitoring either approaches or sits beyond the federal benchmark under Lead and Copper Rule sampling. A baseline kit fits the routine-diligence category, with certified filtration available via retailer networks where confirmed faucet results warrant additional measures.

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

Historical Flood-Claim Evidence for Shell Knob

2
Total FEMA Flood Claims
$21,159
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Shell Knob contains 2 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $21,159. 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. The <strong>$1,600</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

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 water violations does Shell Knob have?
Shell Knob water systems have a total of 103 EPA violations. Violations are tracked across 1 ZIP code.
Does Shell Knob water have lead?
The average 90th-percentile lead level in Shell Knob is 0.0132 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Shell Knob?
Shell Knob is served by 5 public water systems across 1 ZIP code, serving approximately 3,957 people.
How much does it cost to fix water issues in Shell Knob?
Estimated remediation costs in Shell Knob average $1,600 per household, ranging from $800 to $2,600. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesMissouri → Shell Knob, MO

How to cite this page

APA ZipCheckup. (2026). Shell Knob, MO - Home Safety Score unavailable. https://zipcheckup.com/cities/mo/shell-knob/
BibTeX
@misc{zipcheckup-cities-mo-shell-knob,
  author = {{ZipCheckup}},
  title  = {{Shell Knob, MO - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/mo/shell-knob/}
}

Page version: August 2026.

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