2023 EPA TRI data 124 facilities 512 water systems

South Dakota Environmental Profile

According to the U.S. Environmental Protection Agency's 2023 Toxics Release Inventory, Safe Drinking Water Information System, and Superfund National Priorities List, this is South Dakota's (SD) full public environmental-compliance record - toxic releases, drinking-water systems, and Superfund sites in one place.

SD regulatory profile by statute

Violation/site counts mapped to the EPA statutes this portal tracks

records

What this shows Counts are mapped to statute as a structural proxy and reflect reported activity, not toxicity-weighted or population-adjusted risk. Clean Air Act (Title V) permit data is not currently ingested by this portal, so air-permit compliance is not shown here.

Source EPA SDWIS / Superfund

TRI Facilities

124

EPCRA Section 313 reporters

Water Systems

512

SDWIS regulated

Superfund Sites

4

2 active NPL

Total Releases

43.0M lbs

TRI cumulative disclosure

Compliance Snapshot - SD

Sites with no recorded health violations 59.1%
Sites with at least one open violation 40.9%

South Dakota consolidates three federal EPA datasets into one statewide environmental profile: 124 Toxics Release Inventory (TRI) facilities reporting under EPCRA Section 313, 512 community water systems regulated under the Safe Drinking Water Act, and 4 sites on the Superfund National Priorities List.

TRI facilities in SD have cumulatively disclosed 43.0M lbs of toxic chemical releases, while SDWIS records show 1,192 total violations across the state's regulated water systems, of which 260 systems carry an active health-based violation (MCL exceedance or treatment-technique failure). Activity clusters in counties such as Meade, Minnehaha, Pennington, which account for the highest combined facility, water-system, and Superfund presence.

Every figure reflects the public regulatory record as filed with the U.S. Environmental Protection Agency and is not weighted for toxicity, geographic footprint, or population exposure. A state can rank high in any individual metric because of industrial history, naturally occurring contaminants in source water, or simply the number of reporting facilities, not because current residents face unsafe conditions. Drill into any county or water system below for the full disclosure record.

What does this state's environmental record show?

TRI Facilities
124
Water Systems
512
Superfund Sites
4
Total Violations
1,192
Total Releases
43.0M lbs
Health Violations
260
water systems

Largest Polluters

View all →
# Facility Total Releases
1 Smithfield Packaged Meats Corp - Sioux Falls 21.3M lbs
2 Wharf Resources 8.0M lbs
3 Novita Aurora LLC 2.5M lbs
4 Otter Tail Power Co Big Stone Plant 2.2M lbs
5 South Dakota Soybean Processors 2.0M lbs
6 Ag Processing Inc 1.3M lbs
7 New Angus LLC 836.6K lbs
8 Workhorse Cabs LLC DBA Crenlo Engineered Cabs 775.7K lbs
9 Masterbrand Cabinets LLC 421.0K lbs
10 Design Tanks LLC 247.4K lbs
11 Showplace Wood Products 227.8K lbs
12 Solventum Brookings 224.5K lbs
13 Hydro Extrusion USA LLC 223.3K lbs
14 Poet Biorefining - Hudson 203.9K lbs
15 Dakota Ethanol LLC 194.4K lbs
16 Pete Lien & Sons Inc 193.6K lbs
17 Marmen Energy Co 192.0K lbs
18 Glacial Lakes Energy LLC 162.9K lbs
19 Aberdeen Energy LLC 161.1K lbs
20 Woodland Cabinetry Inc 143.6K lbs

Water Quality

Systems with Health Violations

Water System Population Violations
SHIRT TAIL GULCH DEVELOPMENT 65 187
CEDAR GULCH 2 40 57
OAK MOUNTAIN COUNTRY ESTATES 85 41
MEADOW CREST SANITARY DISTRICT 63 32
VIEWFIELD RURAL WATER SYSTEM 220 32
GOLDEN VALLEY WATER COMPANY 283 21
OWANKA RURAL WATER SYSTEM 52 20
BOX ELDER 14,000 19
GARDEN CITY 33 15
NORTH MARTIN WATER SYSTEM 78 14
ABERDEEN 27,989 14
BUFFALO GAP 126 13
SUMMIT 288 13
ROSHOLT 379 12
YANKTON 15,411 12
MASKELL, VILLAGE OF 86 10
WALNUT PARK 180 10
PROVO AREA WATER SYSTEM 25 10
PINE HILLS PARK 200 9
REYNOLDS COURT 28 9

Cities with Water Issues

Superfund Sites (4)

Site Name Status HRS Score
Ellsworth Air Force Base NPL Site 33.62
Gilt Edge Mine NPL Site 50.00
Whitewood Creek Deleted NPL Site -
Williams Pipe Line Co. Disposal Pit Deleted NPL Site 42.24

Counties (67 total)

Showing top 20 counties by environmental activity. South Dakota has 67 counties total.

Largest Cities

Alcester
Pop: -
1 facilities · 1 water systems
Aurora
Pop: -
2 facilities · 1 water systems
Brandon
Pop: -
7 facilities · 1 water systems
Brookings
Pop: -
6 facilities · 4 water systems
Corson
Pop: -
1 facilities · 0 water systems
Chancellor
Pop: -
1 facilities · 1 water systems
Canton
Pop: -
1 facilities · 1 water systems
Elk Point
Pop: -
1 facilities · 1 water systems
Freeman
Pop: -
2 facilities · 1 water systems
Harrisburg
Pop: -
1 facilities · 1 water systems
Hudson
Pop: -
1 facilities · 1 water systems
Hartford
Pop: -
1 facilities · 1 water systems
Lennox
Pop: -
1 facilities · 1 water systems
Madison
Pop: -
2 facilities · 1 water systems
North Sioux City
Pop: -
2 facilities · 1 water systems
Marion
Pop: -
1 facilities · 1 water systems
Lyons
Pop: -
1 facilities · 0 water systems
Scotland
Pop: -
1 facilities · 2 water systems
Tea
Pop: -
1 facilities · 1 water systems
Volga
Pop: -
1 facilities · 1 water systems

Frequently Asked Questions

How many polluting facilities are in South Dakota?
South Dakota has 124 facilities that report to the EPA Toxic Release Inventory (TRI). These facilities have collectively reported 43.0M lbs in total toxic chemical releases. TRI data is self-reported annually by facilities that manufacture, process, or use listed toxic chemicals above threshold amounts.
Does South Dakota have Superfund sites?
Yes, South Dakota has 4 sites on the EPA Superfund National Priorities List (NPL). Superfund sites are contaminated locations identified for long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
Is the water safe in South Dakota?
South Dakota has 512 EPA-regulated water systems. 260 water systems have reported health-based violations (MCL exceedances). A past violation does not necessarily mean water is currently unsafe. For current water quality, contact your local water utility. Source: EPA SDWIS.
What environmental data is available for South Dakota?
PlainEnviro provides three categories of EPA environmental data for South Dakota: Toxic Release Inventory (TRI) data covering 124 industrial facilities, Safe Drinking Water Information System (SDWIS) data for 512 water systems, and Superfund National Priorities List (NPL) data for 4 contaminated sites.
How does South Dakota compare to other states environmentally?
South Dakota has 124 TRI facilities with 43.0M lbs in total releases, 4 Superfund sites, and 1,192 water system violations on record. State-level environmental comparisons depend on many factors including industrial activity, population, and geographic size. Source: EPA TRI, SDWIS, and Superfund NPL databases.

About This Data

This page aggregates environmental data from three EPA programs for South Dakota: the Toxic Release Inventory (TRI) for industrial chemical releases, the Safe Drinking Water Information System (SDWIS) for water quality, and the Superfund National Priorities List (NPL) for hazardous waste cleanup sites.

PlainEnviro presents this data without advocacy framing. Numbers reflect reported data and may not capture all environmental activity. For specific health or environmental concerns, contact your state environmental agency.

What to do with South Dakota's data

Use this state profile as a starting point, then drill into the specific dataset that matters to you.

  • Check the 124 TRI facilities reporting in South Dakota for the largest reported releases near a specific county. View facilities
  • 260 water systems in the state have a recorded health-based violation, check if yours is one of them. Check water systems
  • See how South Dakota compares to other states on releases, water violations, and Superfund sites. State rankings

Reported data reflects what facilities and agencies disclose to the EPA; it is not a complete measure of environmental risk or a substitute for local guidance.

Related

Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro Editorial

According to the U.S. Environmental Protection Agency, this state profile is drawn from PlainEnviro's database of more than 25,000 EPA-tracked facilities, the Safe Drinking Water Information System, and the Superfund National Priorities List, compiled since federal reporting began under the Emergency Planning and Community Right-to-Know Act in October 1986; see our methodology for full source citations and refresh cadence.

Every figure on PlainEnviro is rendered directly from EPA environmental compliance data, no number is typed in by an editor. State environmental figures are computed directly from EPA data. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.