Grafton, WI
Contamination score
Higher = more contaminated vs. other cities.
Share this with friends & family you care about ❤️
Help someone you love know what's in their water — we'll email them Grafton's report. No sign-ups, no list.
Reported illness & cancer claims
No claims reported yet. Be the first to add one.
Claims are aggregated from public records and community reports and may be unverified. If you believe your illness is linked to local water, request a consultation.
Self-reported issues
No issues reported yet. Be the first to report one.
Pollution sources & reported claims near your water
Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.
Get water alerts for Grafton, WI
We'll email you when a new violation, lawsuit, or health report appears for Grafton's water. Free, unsubscribe anytime.

Public water systems
Grafton Waterworks
- PWSID:
- WI2460111
- Source:
- Ground water
- Serves:
- 12,269 people
Osprey Mobile Home Park
- PWSID:
- WI2460113
- Source:
- Ground water
- Serves:
- 150 people
Stonecroft Condominium Assn
- PWSID:
- WI2460114
- Source:
- Ground water
- Serves:
- 50 people
EPA & DEP violations
Osprey Mobile Home Park
PWSID WI246011313 violationsReporting violation — OSPREY MOBILE HOME PARK
low severityResolvedEPA SDWIS violation 2500118 (code 4H) at OSPREY MOBILE HOME PARK (PWSID WI2460113).
EPA SDWIS · Reporting violation · Began Jul 2, 2025 · 1 year ago · Source ↗
Monitoring violation — OSPREY MOBILE HOME PARK
low severityResolvedEPA SDWIS violation 2100103 (code 03) at OSPREY MOBILE HOME PARK (PWSID WI2460113).
EPA SDWIS · Monitoring violation · Began Oct 1, 2020 · 5 years ago · Source ↗
Monitoring violation — OSPREY MOBILE HOME PARK
low severityResolvedEPA SDWIS violation 2000102 (code 03) at OSPREY MOBILE HOME PARK (PWSID WI2460113).
EPA SDWIS · Monitoring violation · Began Jul 1, 2020 · 6 years ago · Source ↗
MCL exceedance — OSPREY MOBILE HOME PARK
high severityHealth-basedResolvedEPA SDWIS violation 2000101 (code 02) at OSPREY MOBILE HOME PARK (PWSID WI2460113).
EPA SDWIS · MCL exceedance · Began Apr 1, 2020 · 6 years ago · Source ↗
Other violation — OSPREY MOBILE HOME PARK
low severityResolvedEPA SDWIS violation 2000100 (code 75) at OSPREY MOBILE HOME PARK (PWSID WI2460113).
EPA SDWIS · Other violation · Began Feb 5, 2020 · 6 years ago · Source ↗
Monitoring violation — OSPREY MOBILE HOME PARK
low severityResolvedEPA SDWIS violation 2000098 (code 66) at OSPREY MOBILE HOME PARK (PWSID WI2460113).
EPA SDWIS · Monitoring violation · Began Jan 1, 2020 · 6 years ago · Source ↗
MCL exceedance — OSPREY MOBILE HOME PARK
high severityHealth-basedResolvedEPA SDWIS violation 2000099 (code 02) at OSPREY MOBILE HOME PARK (PWSID WI2460113).
EPA SDWIS · MCL exceedance · Began Jan 1, 2020 · 6 years ago · Source ↗
MCL exceedance — OSPREY MOBILE HOME PARK
high severityHealth-basedResolvedEPA SDWIS violation 2000097 (code 02) at OSPREY MOBILE HOME PARK (PWSID WI2460113).
EPA SDWIS · MCL exceedance · Began Oct 1, 2019 · 6 years ago · Source ↗
Other violation — OSPREY MOBILE HOME PARK
low severityResolvedEPA SDWIS violation 2000095 (code 75) at OSPREY MOBILE HOME PARK (PWSID WI2460113).
EPA SDWIS · Other violation · Began Sep 23, 2019 · 6 years ago · Source ↗
Other violation — OSPREY MOBILE HOME PARK
low severityResolvedEPA SDWIS violation 2000096 (code 75) at OSPREY MOBILE HOME PARK (PWSID WI2460113).
EPA SDWIS · Other violation · Began Sep 23, 2019 · 6 years ago · Source ↗
MCL exceedance — OSPREY MOBILE HOME PARK
high severityHealth-basedResolvedEPA SDWIS violation 1900093 (code 02) at OSPREY MOBILE HOME PARK (PWSID WI2460113).
EPA SDWIS · MCL exceedance · Began Jul 1, 2019 · 7 years ago · Source ↗
Monitoring violation — OSPREY MOBILE HOME PARK
low severityResolvedEPA SDWIS violation 1800049 (code 52) at OSPREY MOBILE HOME PARK (PWSID WI2460113).
EPA SDWIS · Monitoring violation · Began Jun 1, 2018 · 8 years ago · Source ↗
MCL exceedance — OSPREY MOBILE HOME PARK
high severityHealth-basedResolvedEPA SDWIS violation 1900092 (code 02) at OSPREY MOBILE HOME PARK (PWSID WI2460113).
EPA SDWIS · MCL exceedance · Began Jan 1, 2018 · 8 years ago · Source ↗
City-wide
20 violationsLEAD AND COPPER RULE REVISIONS — RPT violation
medium severityResolvedLEAD AND COPPER RULE REVISIONS RPT violation (Resolved).
EPA SDWIS · RPT · Began Jul 2, 2025 · 1 year ago · Source ↗
LEAD AND COPPER RULE REVISIONS — RPT violation
medium severityResolvedLEAD AND COPPER RULE REVISIONS RPT violation (Resolved).
EPA SDWIS · RPT · Began Oct 17, 2024 · 1 year ago · Source ↗
LEAD AND COPPER RULE REVISIONS — TT violation
high severityHealth-basedResolvedLEAD AND COPPER RULE REVISIONS TT violation (Resolved).
EPA SDWIS · TT · Began Oct 17, 2024 · 1 year ago · Source ↗
Public Notice — Other violation
medium severityUnaddressedPublic Notice Other violation (Unaddressed).
EPA SDWIS · Other · Began Oct 17, 2024 · 1 year ago · Source ↗
Public Notice — Other violation
medium severityUnaddressedPublic Notice Other violation (Unaddressed).
EPA SDWIS · Other · Began Oct 17, 2024 · 1 year ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2022 · 4 years ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jun 1, 2021 · 5 years ago · Source ↗
Nitrite — MR violation
medium severityResolvedNitrite MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2021 · 5 years ago · Source ↗
Arsenic — MR violation
medium severityResolvedArsenic MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2020 · 5 years ago · Source ↗
Arsenic — MR violation
medium severityResolvedArsenic MR violation (Resolved).
EPA SDWIS · MR · Began Jul 1, 2020 · 6 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Apr 1, 2020 · 6 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Feb 5, 2020 · 6 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2020 · 6 years ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2020 · 6 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2019 · 6 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Sep 23, 2019 · 6 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Sep 23, 2019 · 6 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Jul 1, 2019 · 7 years ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jun 1, 2018 · 8 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2018 · 8 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.