Current Noncompliance MO

Lake Sherwood Subd

EPA ID: MO6036039 ยท 1,100 people served ยท 1 ZIP code

ZipCheckup's reading of EPA SDWIS for Lake Sherwood Subd (MO6036039): 1 unresolved EPA violation on record. Right now, Lake Sherwood Subd shows 1 EPA violation marked active and unresolved - the provider continues to supply approximately 1,100 residents while each finding awaits closure.

Data: EPA SDWIS

1,100
People Served
1
ZIP Code Served
45
Violations (5yr)
Groundwater
Water Source
0.00383 mg/L
Max Lead Level
24
Contaminants Flagged
$243K
Median Home Value in Service Area

Service Area Map

Coverage area for Lake Sherwood Subd Source: EPA SDWIS service area boundaries.

Service area boundary

Service Area Demographics

$87,500
Median Household Income
6,593
Service Area Population
60%
Disadvantaged Population
60th
Poverty Percentile
60th
Energy Burden Percentile
49%
Pre-1986 Housing

The Lake Sherwood Subd serves a community with a median household income of $87,500 and an estimated 6,593 residents across its service area. Approximately 49% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

Environmental Justice Note: 60% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.

๐Ÿ’ง Where Does Your Water Come From?

Groundwater

Lake Sherwood Subd's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.

Moderate Risk
Source Contamination Risk
60th
Wastewater Discharge Proximity
40th
Superfund Site Proximity

Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points.

Infrastructure Risk

43 yr
Avg Pipe Age
Copper
Pipe Material
27 yr
Est. Remaining Life
Moderate Wear
Decay Status
Installed 61% of expected lifespan used End of life

Detected Contaminants

How Lake Sherwood Subd compares to EPA limits

PFOA 2 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.000004 mg/L
PFNA 2 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.00001 mg/L
Chlorodibromomethane 2 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.002 mg/L
Liver cancer, brain cancer (known carcinogen)
Bromate 2 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.01 mg/L
Arsenic 1 mg/L (EXCEEDS LIMIT)
0 EPA Limit: 0.01 mg/L

What This Means For You

PFOA at 2 mg/L exceeds the EPA maximum of 0.000004 mg/L.

PFNA at 2 mg/L exceeds the EPA maximum of 0.00001 mg/L.

Chlorodibromomethane at 2 mg/L exceeds the EPA maximum of 0.002 mg/L. Liver cancer, brain cancer (known carcinogen). Consider granular activated carbon (GAC) filtration.

Bromate at 2 mg/L exceeds the EPA maximum of 0.01 mg/L.

Arsenic at 1 mg/L exceeds the EPA maximum of 0.01 mg/L.

Chlorodibromomethane was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.

Find a certified water filter โ†’

Comparable Water Systems

Similar-sized systems in Missouri

0 violations
0 violations
23 violations
Pulaski County Pwsd 3
1,113 people
1 violation
4 violations

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Flood Insurance Radon Mitigation
Flood Insurance $1,200
Radon Mitigation $400
Total Estimated Cost $1,600

Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.

Cost of Inaction

If water quality issues in this service area are not addressed, the estimated financial impact per household is:

Estimated Healthcare Costs $1,500

Annual per household (CDC est.)

Estimated Cumulative Cost Per Household

5 years
$7,500
10 years
$15,000
20 years
$30,000

Compare: Estimated remediation cost is $1,600 (one-time) vs. $15,000 in estimated inaction costs over 10 years.

Estimates based on published EPA, CDC, and peer-reviewed research. Individual costs vary by household size, property, and health factors. These are conservative lower-bound estimates intended for awareness, not financial advice.

System Overview

Lake Sherwood Subd (EPA ID: MO6036039) is a community water system in Missouri that serves approximately 1,100 people from groundwater sources.

This system serves ZIP code 63357 in Marthasville.

Violation History

1 current noncompliance record in the accepted 2026Q2 snapshot; none are classified as health-based in this evidence.

Status breakdown for accepted records with record years 2021-2026: 1 resolved, 43 archived, 0 addressed, and 1 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Date Contaminant Type Status
October 1, 2025 PFOA Non-health-based Archived
October 1, 2025 PFNA Non-health-based Archived
October 1, 2025 Monochloroacetic Acid Non-health-based Archived
October 1, 2025 Dichloroacetic Acid Non-health-based Archived
October 1, 2025 Bromodichloromethane Non-health-based Archived
October 1, 2025 Dibromochloromethane Non-health-based Archived
October 1, 2025 Bromoform Non-health-based Archived
October 1, 2025 Chlorodibromomethane Non-health-based Archived
October 1, 2025 Trichloroacetic Acid Non-health-based Archived
October 1, 2025 Monobromoacetic Acid Non-health-based Archived
October 1, 2025 Dibromoacetic Acid Non-health-based Archived
October 1, 2025 Bromochloroacetic Acid Non-health-based Archived
October 1, 2025 Bromodichloroacetic Acid Non-health-based Archived
October 1, 2025 Chlorodibromoacetic Acid Non-health-based Archived
October 1, 2025 Tribromoacetic Acid Non-health-based Archived
October 1, 2025 HAA6Br Non-health-based Archived
October 1, 2025 HAA9 Non-health-based Archived
October 1, 2025 Bromate Non-health-based Archived
October 1, 2025 Chlorate Non-health-based Archived
October 1, 2025 Chloramine Non-health-based Archived

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Contaminant Category Violations Health-Based
PFOA PFAS 2 No
PFNA PFAS 2 No
Monochloroacetic Acid Disinfection Byproducts 2 No
Dichloroacetic Acid Disinfection Byproducts 2 No
Bromodichloromethane Disinfection Byproducts 2 No
Dibromochloromethane Disinfection Byproducts 2 No
Bromoform Disinfection Byproducts 2 No
Chlorodibromomethane Disinfection Byproducts 2 No
Trichloroacetic Acid Disinfection Byproducts 2 No
Monobromoacetic Acid Disinfection Byproducts 2 No
Dibromoacetic Acid Disinfection Byproducts 2 No
Bromochloroacetic Acid Disinfection Byproducts 2 No
Bromodichloroacetic Acid Disinfection Byproducts 2 No
Chlorodibromoacetic Acid Disinfection Byproducts 2 No
Tribromoacetic Acid Disinfection Byproducts 2 No

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

Lead Level Exceeds Action Level Sample Date
0.00383 mg/L No N/A

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Need help with your water quality?

Typical cost: Water test: typically $20โ€“$50 (DIY kit) ยท Professional inspection: $150โ€“$400

Find the Right Water Filter

Free tip: Let cold water run for 2 minutes before drinking โ€” this helps flush lead from your pipes.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by MO or modeled from parcel and building-footprint data.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Lake Sherwood Subd (MO6036039) on EPA.gov.

Frequently Asked Questions

Is Lake Sherwood Subd water safe to drink?

The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.

How many people does Lake Sherwood Subd serve?

Lake Sherwood Subd serves approximately 1,100 people across 1 ZIP code in Missouri.

Where does Lake Sherwood Subd get its water?

The primary water source is groundwater.

Frequently Asked Questions

What contaminants are in Lake Sherwood Subd's water?
Detected contaminants include PFOA, PFNA, Chlorodibromomethane, Bromate. Each is compared against EPA maximum contaminant levels (MCLs) in the detailed breakdown above.
Should I use a water filter?
Given 5 contaminants above EPA limits, a certified water filter can provide an extra layer of protection. The best type depends on specific contaminants in your water.
How many people does Lake Sherwood Subd serve?
Lake Sherwood Subd serves approximately 1,100 people with drinking water across 1 ZIP code.
What is Lake Sherwood Subd's water source?
Lake Sherwood Subd draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
Is there lead in Lake Sherwood Subd's water?
The maximum detected lead level is 0.00383 mg/L. This is within EPA action level guidelines.
What is the demographic profile of Lake Sherwood Subd's service area?
The Lake Sherwood Subd service area has a median household income of $87,500. EPA EJScreen data classifies 60% of the population as disadvantaged, which may indicate greater vulnerability to environmental health risks.
Where does Lake Sherwood Subd get its water?
Lake Sherwood Subd's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table. Based on available data, the source contamination risk is moderate.

How to cite this page

APA ZipCheckup. (n.d.). Lake Sherwood Subd (MO): 45 EPA Violations. https://zipcheckup.com/water-system/mo6036039/
BibTeX
@misc{zipcheckup-water-system-mo6036039,
  author = {{ZipCheckup}},
  title  = {{Lake Sherwood Subd (MO): 45 EPA Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/mo6036039/}
}

What You Can Do

1

Test your water

Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ†’

2

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report โ†’

3

Contact your utility

Lake Sherwood Subd (EPA ID: MO6036039) - request the latest Consumer Confidence Report or ask about specific contaminants.

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