Terry Trojan Water District Water System
MyTapWater.org's tap water quality report is the compilation of data collected from federal, state, and local government agencies, most prominently the EPA. We strive to populate the report with the latest data concerning water contaminants, lead and copper levels, and water quality violations. We only collect drinking water data from public water systems.
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PWS Service Information PWS ID: SD4600053 Type: Community water system EPA Region: 08 Primary Service Area: Homeowners Association Primary Source: Ground water Population Served: 400 |
Contact Information TERRY TROJAN WATER DISTRICT ED STRIEBEL 7005 TIMBERLINE ROAD BLACK HAWK, SD 57718 [email protected] |
This public water system services 3 municipalities in 1 county.
We could not find test result data for Terry Trojan Water District.
However, this area is serviced by 83 or more other public water systems. Check your water bill to see which specific system applies. Here is a list of related systems:
- Black Hawk City Of
- Black Hawk Water User District
- Lead
- Deadwood
- Northdale Sanitary District
- Bear Country Usa
- Palmer Gulch Lodge/mt Rushmore Koa
- Flying J Travel Plaza
- Terry Trojan Water District
- Pine Hills Park
See 73 more related public water systems »
Summary Results
A summary view of tests in which a water contaminant found to exceed the Maximum Contaminant Level (MCL) set by the EPA.
We couldn't find any records of contaminants exceeding the regulated limits in your water.
Tip: Test your water at least once a year.
Other Water Contaminants Tested
The following contaminants were tested and found to be within national EPA guidelines.
We couldn't find any records of contaminants in your water.
Lead and Copper Data
Lead and copper are recorded separately from other contaminants because of the Lead and Copper Rule. As with all other results, these are the findings at the water supply level. Lead and copper can be — and often are — deposited in drinking water in between the water facility and your tap.
| Sample ID | Contaminant | Sampling Start Date | Sampling End Date | Result |
|---|---|---|---|---|
| 10103 | lead | 2017-01-01 | 2017-12-31 | 0.011mg/L |
| 10091 | lead | 2014-01-01 | 2014-12-31 | 0.001mg/L |
| 10083 | lead | 2012-01-01 | 2012-12-31 | 0.003mg/L |
| 10067 | lead | 2008-01-01 | 2008-12-31 | 0.004mg/L |
Violations
Known violations of the Safe Drinking Water Act as recorded by the EPA.
| Compliance Dates | Rule | Violation Type | Contaminant Name | Status |
|---|---|---|---|---|
| 2008-01-01 - 2008-03-31 | Arsenic | Maximum Contaminant Level Violation, Average | Arsenic | Returned to Compliance |
| 2007-10-01 - 2007-12-31 | Arsenic | Maximum Contaminant Level Violation, Average | Arsenic | Returned to Compliance |
| 2007-07-01 - 2007-09-30 | Arsenic | Maximum Contaminant Level Violation, Average | Arsenic | Returned to Compliance |
| 2007-04-01 - 2007-06-30 | Arsenic | Maximum Contaminant Level Violation, Average | Arsenic | Returned to Compliance |
| 2007-01-01 - 2007-03-31 | Arsenic | Maximum Contaminant Level Violation, Average | Arsenic | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | 2,4-D | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | 2,4,5-TP | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Atrazine | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Benzo(a)pyrene | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | BHC-GAMMA | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Carbofuran | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Chlordane | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Dalapon | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Di(2-ethylhexyl) adipate | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Di(2-ethylhexyl) phthalate | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Dinoseb | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Diquat | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Endothall | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Endrin | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | ETHYLENE DIBROMIDE | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Glyphosate | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Heptachlor | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Heptachlor epoxide | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | HEXACHLOROBENZENE | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Hexachlorocyclopentadiene | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | LASSO | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Methoxychlor | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | OXAMYL | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Pentachlorophenol | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Picloram | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Simazine | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | Returned to Compliance |
| 2006-04-01 - 2006-06-30 | Synthetic Organic Chemicals | Monitoring, Regular | Toxaphene | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | 2,4-D | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | 2,4,5-TP | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Atrazine | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Benzo(a)pyrene | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | BHC-GAMMA | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Carbofuran | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Chlordane | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Dalapon | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Di(2-ethylhexyl) adipate | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Di(2-ethylhexyl) phthalate | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Dinoseb | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Diquat | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Endothall | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Endrin | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | ETHYLENE DIBROMIDE | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Glyphosate | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Heptachlor | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Heptachlor epoxide | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | HEXACHLOROBENZENE | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Hexachlorocyclopentadiene | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | LASSO | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Methoxychlor | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | OXAMYL | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Pentachlorophenol | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Picloram | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Simazine | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Synthetic Organic Chemicals | Monitoring, Regular | Toxaphene | Returned to Compliance |
| 2006-01-01 - 2006-03-31 | Stage 1 Disinfectants and Disinfection Byproducts Rule | Monitoring and Reporting (DBP) | Chlorine | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | 2,4-D | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | 2,4,5-TP | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Atrazine | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Benzo(a)pyrene | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | BHC-GAMMA | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Carbofuran | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Chlordane | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Dalapon | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Di(2-ethylhexyl) adipate | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Di(2-ethylhexyl) phthalate | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Dinoseb | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Diquat | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Endothall | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Endrin | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | ETHYLENE DIBROMIDE | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Glyphosate | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Heptachlor | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Heptachlor epoxide | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | HEXACHLOROBENZENE | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Hexachlorocyclopentadiene | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | LASSO | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Methoxychlor | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | OXAMYL | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Pentachlorophenol | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Picloram | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Simazine | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Synthetic Organic Chemicals | Monitoring, Regular | Toxaphene | Returned to Compliance |
| 2005-10-01 - 2005-12-31 | Stage 1 Disinfectants and Disinfection Byproducts Rule | Monitoring and Reporting (DBP) | Chlorine | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | 2,4-D | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | 2,4,5-TP | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Atrazine | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Benzo(a)pyrene | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | BHC-GAMMA | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Carbofuran | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Chlordane | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Dalapon | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Di(2-ethylhexyl) adipate | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Di(2-ethylhexyl) phthalate | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Dinoseb | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Diquat | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Endothall | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Endrin | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | ETHYLENE DIBROMIDE | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Glyphosate | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Heptachlor | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Heptachlor epoxide | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | HEXACHLOROBENZENE | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Hexachlorocyclopentadiene | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | LASSO | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Methoxychlor | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | OXAMYL | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Pentachlorophenol | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Picloram | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Simazine | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Synthetic Organic Chemicals | Monitoring, Regular | Toxaphene | Returned to Compliance |
| 2005-07-01 - 2005-09-30 | Stage 1 Disinfectants and Disinfection Byproducts Rule | Monitoring and Reporting (DBP) | Chlorine | Returned to Compliance |
| - N/A | Arsenic | Monitoring, Regular | Arsenic | Known |
| - N/A | Inorganic Chemicals | Monitoring, Regular | Barium | Known |
| - N/A | Inorganic Chemicals | Monitoring, Regular | Cadmium | Known |
| - N/A | Inorganic Chemicals | Monitoring, Regular | Chromium | Known |
| - N/A | Radionuclides | Monitoring, Regular | Combined Radium (-226 and -228) | Known |
| - N/A | Inorganic Chemicals | Monitoring, Regular | Fluoride | Known |
| - N/A | Radionuclides | Monitoring, Regular | Gross Alpha, Excl. Radon and U | Known |
| - N/A | Inorganic Chemicals | Monitoring, Regular | Mercury | Known |
| - N/A | Nitrates | Monitoring, Regular | Nitrate | Known |
| - N/A | Inorganic Chemicals | Monitoring, Regular | Selenium | Known |
| 2004-01-01 - N/A | Stage 1 Disinfectants and Disinfection Byproducts Rule | Treatment Technique No Certif. Operator | Stage 1 Disinfectants and Disinfection Byproducts Rule | Returned to Compliance |
| - N/A | Total Coliform Rule | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Returned to Compliance |
| - N/A | Total Coliform Rule | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Returned to Compliance |
| - N/A | Total Coliform Rule | Monitoring, Routine Major (TCR) | Coliform (TCR) | Known |
| - N/A | Total Coliform Rule | Monitoring, Routine Major (TCR) | Coliform (TCR) | Known |
| - N/A | Total Coliform Rule | Monitoring, Routine Major (TCR) | Coliform (TCR) | Known |
| - N/A | Total Coliform Rule | Monitoring, Routine Major (TCR) | Coliform (TCR) | Known |
| - N/A | Total Coliform Rule | Monitoring, Routine Major (TCR) | Coliform (TCR) | Known |
| - N/A | Total Coliform Rule | Monitoring, Routine Major (TCR) | Coliform (TCR) | Returned to Compliance |
| - N/A | Lead and Copper Rule | Initial Tap Sampling for Pb and Cu | Lead and Copper Rule | Returned to Compliance |
| 2011-10-01 - N/A | Lead and Copper Rule | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | Returned to Compliance |
| 2007-01-01 - N/A | Public Notice Rule | Public Notification Violation for NPDWR Violation | Public Notice | Returned to Compliance |
| 2008-04-01 - N/A | Public Notice Rule | Public Notification Violation for NPDWR Violation | Public Notice | Open |
Local Water Testing
Find a lab in your area so you can get your tap or well water tested. This list contains both governmental and private labs, all of which are EPA-certified for drinking water testing.
Unable to identify any nearby water testing labs near 57718.
Water Bill Information
Convenient information about your water service.
Unable to identify any billing information about Terry Trojan Water District (SD4600053).
What My Water Data Means
Water data isn't always easy to interpret, but by following the links on this page you should be able to have most of your questions answered. By clicking the name of a water contaminant or secondary substance you can learn about that specific substance. Ultimately this page should give you some insight towards learning if your water is safe, what water filter you should buy (if any), and how well your local water compares against other sources.
Sources
The origin of MyTapWater.org's water data is explained on our Data Sources page.
Why Is My Water Data Not More Recent?
The recency of the data for your ZIP code depends on the last your water source was tested, by a federal, state, or local agency. More information about the timing can be determined by learning about the dataset in question and seeing how often the EPA (other another governing body) mandated testing.