Piedmont, SD
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
Sheridan Lake Highlands, Inc.
- PWSID:
- SD4602285
- Source:
- Ground water
- Serves:
- 85 people
Cedar Gulch 2
- PWSID:
- SD4602295
- Source:
- Ground water
- Serves:
- 40 people
Timberwood Park Estates
- PWSID:
- SD4602272
- Source:
- Ground water
- Serves:
- 158 people
Piedmont
- PWSID:
- SD4602303
- Source:
- Ground water
- Serves:
- 971 people
Pine Cone Estates
- PWSID:
- SD4602179
- Source:
- Ground water
- Serves:
- 42 people
Blucksberg Mountain #1
- PWSID:
- SD4600324
- Source:
- Ground water
- Serves:
- 223 people
Sunnyside Mobile Home Park Ii
- PWSID:
- SD4602001
- Source:
- Ground water
- Serves:
- 235 people
Weston Heights Homeowners Associatio
- PWSID:
- SD4600862
- Source:
- Ground water
- Serves:
- 412 people
Spring Canyon Water Company
- PWSID:
- SD4600015
- Source:
- Ground water
- Serves:
- 89 people
Bestgen Addition Water Company
- PWSID:
- SD4600387
- Source:
- Ground water
- Serves:
- 73 people
Rolling Dice Subdivision
- PWSID:
- SD4602249
- Source:
- Ground water
- Serves:
- 122 people
Lofty Pines Ii
- PWSID:
- SD4602250
- Source:
- Ground water
- Serves:
- 38 people
Sunset Ranch
- PWSID:
- SD4602263
- Source:
- Ground water
- Serves:
- 263 people
Horseshoe Acres Water Association
- PWSID:
- SD4602266
- Source:
- Ground water
- Serves:
- 180 people
Pleasant Valley Homeowners Associati
- PWSID:
- SD4602172
- Source:
- Ground water
- Serves:
- 48 people
Northdale Sanitary District
- PWSID:
- SD4600514
- Source:
- Ground water
- Serves:
- 1,075 people
Westberry Trails Water Users Assoc
- PWSID:
- SD4600253
- Source:
- Ground water
- Serves:
- 155 people
Cavalry Trails Homeowner Association
- PWSID:
- SD4602106
- Source:
- Ground water
- Serves:
- 44 people
Rimrock Highland Estates Comm Assoc
- PWSID:
- SD4602231
- Source:
- Ground water
- Serves:
- 66 people
Autumn Meadows Sanitary District
- PWSID:
- SD4602240
- Source:
- Ground water
- Serves:
- 49 people
Valley View Water Company
- PWSID:
- SD4600040
- Source:
- Ground water
- Serves:
- 248 people
Golden Hills Subdivision
- PWSID:
- SD4602284
- Source:
- Ground water
- Serves:
- 30 people
Bridle Ridge Estates
- PWSID:
- SD4602362
- Source:
- Ground water
- Serves:
- 38 people
Valley View Water Association
- PWSID:
- SD4602343
- Source:
- Ground water
- Serves:
- 42 people
Blucksberg Mountain #2
- PWSID:
- SD4602366
- Source:
- Ground water
- Serves:
- 333 people
EPA & DEP violations
Consumer Confidence Rule — Other violation
medium severityUnaddressedConsumer Confidence Rule Other violation (Unaddressed).
EPA SDWIS · Other · Began Jul 1, 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 ↗
Chlorine — MR violation
medium severityResolvedChlorine MR violation (Resolved).
EPA SDWIS · MR · Began Jul 1, 2024 · 1 year ago · Source ↗
Stage 1 Disinfectants and Disinfection Byproducts Rule — TT violation
high severityHealth-basedResolvedStage 1 Disinfectants and Disinfection Byproducts Rule TT violation (Resolved).
EPA SDWIS · TT · Began Feb 28, 2024 · 2 years ago · Source ↗
Stage 1 Disinfectants and Disinfection Byproducts Rule — TT violation
high severityHealth-basedResolvedStage 1 Disinfectants and Disinfection Byproducts Rule TT violation (Resolved).
EPA SDWIS · TT · Began Feb 28, 2024 · 2 years ago · Source ↗
Stage 1 Disinfectants and Disinfection Byproducts Rule — TT violation
high severityHealth-basedResolvedStage 1 Disinfectants and Disinfection Byproducts Rule TT violation (Resolved).
EPA SDWIS · TT · Began Feb 28, 2024 · 2 years ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Jul 1, 2023 · 2 years ago · Source ↗
Chlorine — MR violation
medium severityResolvedChlorine MR violation (Resolved).
EPA SDWIS · MR · Began Jul 1, 2022 · 3 years ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityResolvedRevised Total Coliform Rule MON violation (Resolved).
EPA SDWIS · MON · Began Jul 1, 2021 · 4 years ago · Source ↗
Chlorine — MR violation
medium severityResolvedChlorine MR violation (Resolved).
EPA SDWIS · MR · Began Jul 1, 2021 · 4 years ago · Source ↗
E. COLI — MR violation
medium severityResolvedE. COLI MR violation (Resolved).
EPA SDWIS · MR · Began May 29, 2021 · 5 years ago · Source ↗
Chlorine — MR violation
medium severityResolvedChlorine MR violation (Resolved).
EPA SDWIS · MR · Began Apr 1, 2021 · 5 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Dec 5, 2020 · 5 years ago · Source ↗
Nitrate — MCL violation
high severityHealth-basedResolvedNitrate MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2020 · 5 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began May 9, 2020 · 6 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedResolvedTotal Haloacetic Acids (HAA5) MCL violation (Resolved).
EPA SDWIS · MCL · Began Apr 1, 2020 · 6 years ago · Source ↗
Nitrate — MCL violation
high severityHealth-basedResolvedNitrate MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2020 · 6 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Dec 1, 2019 · 6 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Nov 1, 2019 · 6 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.