Dekalb County Pwsd 1
EPA ID: MO1024191 · 7,635 people served · 24 ZIP codes
Not yet resolved: 3 EPA violations at Dekalb County Pwsd 1, affecting about 7,635 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 6 (2022) to 23 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Dekalb County Pwsd 1 Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The Dekalb County Pwsd 1 serves a community with a median household income of $74,792 and an estimated 99,112 residents across its service area. Approximately 62% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 33% 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.
💧 Where Does Your Water Come From?
Dekalb County Pwsd 1'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.
About 1% of homes in Platte County, Missouri rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Detected Contaminants
How Dekalb County Pwsd 1 compares to EPA limits
What This Means For You
Chlorite at 9 mg/L exceeds the EPA maximum of 1 mg/L. Anemia and nervous system effects in infants and children. Consider ferrous sulfate reduction filtration.
Lead and Copper Rule at 3 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 1 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 10 detections recorded.
Chlorite was detected in this water system. ferrous sulfate reduction filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in Missouri
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
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.
System Overview
DEKALB COUNTY PWSD 1 (EPA ID: MO1024191) is a community water system in Missouri that serves approximately 7,635 people from groundwater sources.
This system provides water to 24 ZIP codes across 23 communities.
Average Home Safety Score: C (68/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 3, 2025 | Lead and Copper Rule | Monitoring | Resolved |
| July 1, 2025 | Surface Water Treatment Rule | Monitoring | Unresolved |
| April 1, 2025 | Chlorite | Health-based | Resolved |
| January 1, 2025 | Chlorite | Health-based | Resolved |
| October 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| October 1, 2024 | Chlorite | Health-based | Resolved |
| September 29, 2024 | Lead and Copper Rule | Monitoring | Resolved |
| July 1, 2024 | Chlorite | Health-based | Unresolved |
| April 1, 2024 | Chlorite | Health-based | Unresolved |
| January 1, 2024 | Chlorite | Health-based | Unresolved |
| September 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 25, 2023 | Lead and Copper Rule | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Chlorite | Disinfection Byproducts | 9 | Yes |
| Lead and Copper Rule | Treatment Failure | 3 | No |
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
Health Risk Details
Chlorite (EPA limit: 1 mg/L)
Anemia and nervous system effects in infants and children At-risk groups: infants, developing fetuses, people with G6PD deficiency.
Removal methods: ferrous sulfate reduction, activated carbon, reverse osmosis. Find the right filter →
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 64490 | 0.00298 mg/L | No | N/A |
| 64474 | 0.00265 mg/L | No | N/A |
| 64454 | 0.00213 mg/L | No | N/A |
| 64463 | 0.00201 mg/L | No | N/A |
| 64430 | 0.00124 mg/L | No | N/A |
| 64443 | 0.0012 mg/L | No | N/A |
| 64494 | 0.00116 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — 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.
- 64018 — Camden Point
- 64079 — Platte City
- 64089 — Smithville
- 64401 — Agency
- 64422 — Amity
- 64429 — Cameron
- 64430 — Clarksdale
- 64439 — Dearborn
- 64443 — Easton
- 64444 — Edgerton
- 64454 — Gower
- 64463 — King City
- 64465 — Lathrop
- 64469 — Maysville
- 64474 — Osborn
- 64477 — Plattsburg
- 64489 — Stanberry
- 64490 — Stewartsville
- 64492 — Trimble
- 64494 — Union Star
- 64497 — Weatherby
- 64505 — Saint Joseph
- 64507 — Saint Joseph
- 64670 — Pattonsburg
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Dekalb County Pwsd 1 (MO1024191) on EPA.gov.
Frequently Asked Questions
Is Dekalb County Pwsd 1 water safe to drink?
Dekalb County Pwsd 1 has recorded 9 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does Dekalb County Pwsd 1 serve?
Dekalb County Pwsd 1 serves approximately 7,635 people across 24 ZIP codes in Missouri.
Where does Dekalb County Pwsd 1 get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Dekalb County Pwsd 1 (EPA ID: MO1024191) — request the latest Consumer Confidence Report or ask about specific contaminants.