Milford Colony Inc.
EPA ID: MT0001646 · 67 people served · 1 ZIP code
In the most recent EPA reporting cycle, Milford Colony Inc. carried 5 violations still marked as unresolved — each remains active in the federal enforcement ledger while the utility continues operations for its service population of approximately 67 people across the area it supplies.
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 1 (2023) to 2 (2025). The pattern suggests growing compliance challenges.
Service Area Demographics
The Milford Colony Inc. serves a community with a median household income of $68,542 and an estimated 468 residents across its service area. Approximately 55% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Milford Colony Inc.'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 2% of homes in Lewis and Clark County, Montana rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Detected Contaminants
How Milford Colony Inc. compares to EPA limits
What This Means For You
Mercury at 2 mg/L exceeds the EPA maximum of 0.002 mg/L. Kidney damage, neurological impairment. Consider activated carbon (GAC) filtration.
Arsenic at 2 mg/L exceeds the EPA maximum of 0.01 mg/L.
Contaminant 0700 at 15 mg/L exceeds the EPA maximum of mg/L.
Total Trihalomethanes (TTHM) at 1 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Barium at 5 mg/L exceeds the EPA maximum of 2 mg/L.
Mercury was detected in this water system. activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in Montana
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
Milford Colony Inc. (EPA ID: MT0001646) is a community water system in Montana that serves approximately 67 people from groundwater sources.
This system serves ZIP code 59648 in Wolf Creek.
Average Home Safety Score: F (34/100)
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 |
|---|---|---|---|
| April 1, 2025 | Barium | Health-based | Resolved |
| January 1, 2025 | Barium | Health-based | Unresolved |
| October 1, 2024 | Barium | Health-based | Unresolved |
| July 1, 2024 | Barium | Health-based | Unresolved |
| May 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| April 1, 2024 | Mercury | Monitoring | Resolved |
| October 1, 2023 | Mercury | Monitoring | Resolved |
| September 1, 2023 | Contaminant 0700 | Monitoring | Resolved |
| August 1, 2023 | Contaminant 0700 | Monitoring | Resolved |
| July 1, 2023 | Surface Water Treatment Rule | Monitoring | Resolved |
| July 1, 2023 | Barium | Health-based | Unresolved |
| March 1, 2023 | Contaminant 0700 | Monitoring | Resolved |
| February 1, 2023 | Contaminant 0700 | Monitoring | Resolved |
| January 1, 2023 | Contaminant 0700 | Monitoring | Resolved |
| January 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
| January 1, 2023 | Arsenic | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Contaminant 0700 | Other Violation | 15 | No |
| Barium | Inorganic | 5 | Yes |
| Arsenic | Inorganic | 2 | No |
| Mercury | Inorganic | 2 | No |
| Surface Water Treatment Rule | Treatment Failure | 2 | No |
| Consumer Confidence Report Rule | Reporting Failure | 2 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 1 | No |
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
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
- 59648 — Wolf Creek
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Milford Colony Inc. (MT0001646) on EPA.gov.
Frequently Asked Questions
Is Milford Colony Inc. water safe to drink?
Milford Colony Inc. has recorded 5 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 Milford Colony Inc. serve?
Milford Colony Inc. serves approximately 67 people across 1 ZIP code in Montana.
Where does Milford Colony Inc. get its water?
The primary water source is groundwater.
Contact Your Water Utility
Public-record contact information for the water utility serving this system. Use these channels to request water quality reports, ask about service, or report issues directly.
Contact information from Milford Colony Inc Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility, does not act as its agent, and does not provide customer support for it. Contact details shown are public-record information from CCR filings. For service issues, contact the utility directly using the information above.
Water Source & Treatment
Where this water originates and how it's treated before reaching your tap.
Source: Milford Colony Inc Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility. Treatment and source data are sourced from the utility's published CCR filings.
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.
Notable events and violations
This section summarizes events the utility chose to disclose in its most recent Consumer Confidence Report, plus any federal compliance violations the utility recorded against itself. Both lists are utility-authored — ZipCheckup does not audit, judge, or reorder them.
Federal compliance violations on record
These entries are taken verbatim from the utility's CCR violations section. EPA defines four broad violation categories: Maximum Contaminant Level (MCL), Treatment Technique (TT), Monitoring & Reporting (M&R), and Public Notification (PN).
-
MONITORING, ROUTINE MAJOR · Antimony2024-04-01 to 2024-06-30
We failed to test our drinking water for the contaminant and period indicated. Because of this failure, we cannot be sure of the quality of our drinking water during the period indicated.
-
MCL, AVERAGE · Arsenic2024-07-01 to 2024-09-30
Water samples showed that the amount of this contaminant in our drinking water was above its standard (called a maximum contaminant level and abbreviated MCL) for the period indicated.
-
MCL, AVERAGE · Arsenic2024-10-01 to 2024-12-31
Water samples showed that the amount of this contaminant in our drinking water was above its standard (called a maximum contaminant level and abbreviated MCL) for the period indicated.
-
MONITORING, ROUTINE, MAJOR (RTCR)2024-05-01 to 2024-05-31
We failed to test our drinking water for the contaminant and period indicated. Because of this failure, we cannot be sure of the quality of our drinking water during the period indicated.
Violations record from Milford Colony Inc Consumer Confidence Report.
ZipCheckup note: items above reflect what the utility published in its most recent CCR. Federal violation records are also tracked separately by the EPA Safe Drinking Water Information System (SDWIS) — the SDWIS record is the authoritative federal source for any specific regulatory action.
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
Milford Colony Inc. (EPA ID: MT0001646) — request the latest Consumer Confidence Report or ask about specific contaminants.