Grafton, WI
Contamination score
Higher = more contaminated vs. other cities.
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.

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
LEAD AND COPPER RULE REVISIONS — RPT violation
medium severityResolvedLEAD AND COPPER RULE REVISIONS RPT violation (Resolved).
EPA SDWIS · RPT · Began Jul 2, 2025 · 11 months 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 · 5 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 ↗
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 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 · 6 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.