Boondocks CafÉ 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.

PWS Service Information
PWS ID: IA4070201
Type: Non-Transient non-community system
EPA Region: 07
Primary Source: Ground water
Population Served: 630
Contact Information
BOONDOCKS CAFE
BOONDOCKS CAFE
ATTN MANAGER
I35 AT EXIT 144 3065 220TH ST
WILLIAMS, IA 50271

This public water system services 1 municipality in 1 county.

We could not find test result data for Boondocks CafÉ.
However, this area is serviced by 3 or more other public water systems. Check your water bill to see which specific system applies. Here is a list of related 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.

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
IA42162 lead 2014-01-01 2016-12-31 0.004mg/L
IA39402 lead 2011-01-01 2013-12-31 0.002mg/L
IA36740 lead 2008-01-01 2010-12-31 0mg/L

Violations


Known violations of the Safe Drinking Water Act as recorded by the EPA.

Compliance Dates Rule Violation Type Contaminant Name Status
2012-10-01 - 2012-10-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2011-08-01 - 2011-08-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular 1,1-Dichloroethylene Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular 1,1,1-Trichloroethane Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular 1,1,2-Trichloroethane Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloroethane Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloropropane Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular 1,2,4-Trichlorobenzene Returned to Compliance
2005-04-01 - 2011-03-31 Synthetic Organic Chemicals Monitoring, Regular 2,4-D Returned to Compliance
2005-04-01 - 2011-03-31 Synthetic Organic Chemicals Monitoring, Regular 2,4,5-TP Returned to Compliance
2005-04-01 - 2011-03-31 Synthetic Organic Chemicals Monitoring, Regular Atrazine Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular Benzene Returned to Compliance
2005-04-01 - 2011-03-31 Synthetic Organic Chemicals Monitoring, Regular Benzo(a)pyrene Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular Carbon tetrachloride Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular CHLOROBENZENE Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular cis-1,2-Dichloroethylene Returned to Compliance
2005-04-01 - 2011-03-31 Synthetic Organic Chemicals Monitoring, Regular Dalapon Returned to Compliance
2005-04-01 - 2011-03-31 Synthetic Organic Chemicals Monitoring, Regular Di(2-ethylhexyl) adipate Returned to Compliance
2005-04-01 - 2011-03-31 Synthetic Organic Chemicals Monitoring, Regular Di(2-ethylhexyl) phthalate Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular DICHLOROMETHANE Returned to Compliance
2005-04-01 - 2011-03-31 Synthetic Organic Chemicals Monitoring, Regular Dinoseb Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular Ethylbenzene Returned to Compliance
2005-04-01 - 2011-03-31 Synthetic Organic Chemicals Monitoring, Regular LASSO Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular o-Dichlorobenzene Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular p-Dichlorobenzene Returned to Compliance
2005-04-01 - 2011-03-31 Synthetic Organic Chemicals Monitoring, Regular Pentachlorophenol Returned to Compliance
2005-04-01 - 2011-03-31 Synthetic Organic Chemicals Monitoring, Regular Picloram Returned to Compliance
2005-04-01 - 2011-03-31 Synthetic Organic Chemicals Monitoring, Regular Simazine Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular Styrene Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular Tetrachloroethylene Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular Toluene Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular trans-1,2-Dichloroethylene Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular Trichloroethylene Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular Vinyl chloride Returned to Compliance
2005-04-01 - 2011-03-31 Volatile Organic Chemicals Monitoring, Regular Xylenes, Total Returned to Compliance
2009-07-01 - 2009-07-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2008-07-01 - 2008-07-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2008-05-01 - 2008-05-31 Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance
2007-10-01 - 2007-10-31 Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance
2007-07-01 - 2007-08-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2006-07-01 - 2006-08-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2005-04-01 - 2005-09-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Antimony, Total Returned to Compliance
2005-04-01 - 2005-09-30 Arsenic Monitoring, Check/Repeat/Confirmation Arsenic Returned to Compliance
2005-04-01 - 2005-09-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Barium Returned to Compliance
2005-04-01 - 2005-09-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Cadmium Returned to Compliance
2005-04-01 - 2005-09-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Chromium Returned to Compliance
2005-04-01 - 2005-09-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Fluoride Returned to Compliance
2005-04-01 - 2005-09-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Mercury Returned to Compliance
2005-04-01 - 2005-09-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Selenium Returned to Compliance
2005-04-01 - 2005-09-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Thallium, Total Returned to Compliance
2005-07-01 - 2005-08-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation 1,1-Dichloroethylene Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation 1,1,1-Trichloroethane Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation 1,1,2-Trichloroethane Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation 1,2-Dichloroethane Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation 1,2-Dichloropropane Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation 1,2,4-Trichlorobenzene Returned to Compliance
2005-04-01 - 2005-06-30 Synthetic Organic Chemicals Monitoring, Check/Repeat/Confirmation 2,4-D Returned to Compliance
2005-04-01 - 2005-06-30 Synthetic Organic Chemicals Monitoring, Check/Repeat/Confirmation 2,4,5-TP Returned to Compliance
2005-04-01 - 2005-06-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Antimony, Total Returned to Compliance
2005-04-01 - 2005-06-30 Arsenic Monitoring, Check/Repeat/Confirmation Arsenic Returned to Compliance
2005-04-01 - 2005-06-30 Synthetic Organic Chemicals Monitoring, Check/Repeat/Confirmation Atrazine Returned to Compliance
2005-04-01 - 2005-06-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Barium Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation Benzene Returned to Compliance
2005-04-01 - 2005-06-30 Synthetic Organic Chemicals Monitoring, Check/Repeat/Confirmation Benzo(a)pyrene Returned to Compliance
2005-04-01 - 2005-06-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Cadmium Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation Carbon tetrachloride Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation CHLOROBENZENE Returned to Compliance
2005-04-01 - 2005-06-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Chromium Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation cis-1,2-Dichloroethylene Returned to Compliance
2005-04-01 - 2005-06-30 Synthetic Organic Chemicals Monitoring, Check/Repeat/Confirmation Dalapon Returned to Compliance
2005-04-01 - 2005-06-30 Synthetic Organic Chemicals Monitoring, Check/Repeat/Confirmation Di(2-ethylhexyl) adipate Returned to Compliance
2005-04-01 - 2005-06-30 Synthetic Organic Chemicals Monitoring, Check/Repeat/Confirmation Di(2-ethylhexyl) phthalate Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation DICHLOROMETHANE Returned to Compliance
2005-04-01 - 2005-06-30 Synthetic Organic Chemicals Monitoring, Check/Repeat/Confirmation Dinoseb Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation Ethylbenzene Returned to Compliance
2005-04-01 - 2005-06-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Fluoride Returned to Compliance
2005-04-01 - 2005-06-30 Synthetic Organic Chemicals Monitoring, Check/Repeat/Confirmation LASSO Returned to Compliance
2005-04-01 - 2005-06-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Mercury Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation o-Dichlorobenzene Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation p-Dichlorobenzene Returned to Compliance
2005-04-01 - 2005-06-30 Synthetic Organic Chemicals Monitoring, Check/Repeat/Confirmation Pentachlorophenol Returned to Compliance
2005-04-01 - 2005-06-30 Synthetic Organic Chemicals Monitoring, Check/Repeat/Confirmation Picloram Returned to Compliance
2005-04-01 - 2005-06-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Selenium Returned to Compliance
2005-04-01 - 2005-06-30 Synthetic Organic Chemicals Monitoring, Check/Repeat/Confirmation Simazine Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation Styrene Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation Tetrachloroethylene Returned to Compliance
2005-04-01 - 2005-06-30 Inorganic Chemicals Monitoring, Check/Repeat/Confirmation Thallium, Total Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation Toluene Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation trans-1,2-Dichloroethylene Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation Trichloroethylene Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation Vinyl chloride Returned to Compliance
2005-04-01 - 2005-06-30 Volatile Organic Chemicals Monitoring, Check/Repeat/Confirmation Xylenes, Total Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular 1,1-Dichloroethylene Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular 1,1,1-Trichloroethane Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular 1,1,2-Trichloroethane Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloroethane Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloropropane Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular 1,2,4-Trichlorobenzene Returned to Compliance
2002-04-01 - 2005-03-31 Synthetic Organic Chemicals Monitoring, Regular 2,4-D Returned to Compliance
2002-04-01 - 2005-03-31 Synthetic Organic Chemicals Monitoring, Regular 2,4,5-TP Returned to Compliance
- 2005-03-31 Inorganic Chemicals Monitoring, Regular Antimony, Total Returned to Compliance
- 2005-03-31 Arsenic Monitoring, Regular Arsenic Returned to Compliance
2002-04-01 - 2005-03-31 Synthetic Organic Chemicals Monitoring, Regular Atrazine Returned to Compliance
- 2005-03-31 Inorganic Chemicals Monitoring, Regular Barium Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular Benzene Returned to Compliance
2002-04-01 - 2005-03-31 Synthetic Organic Chemicals Monitoring, Regular Benzo(a)pyrene Returned to Compliance
- 2005-03-31 Inorganic Chemicals Monitoring, Regular Cadmium Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular Carbon tetrachloride Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular CHLOROBENZENE Returned to Compliance
- 2005-03-31 Inorganic Chemicals Monitoring, Regular Chromium Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular cis-1,2-Dichloroethylene Returned to Compliance
2002-04-01 - 2005-03-31 Synthetic Organic Chemicals Monitoring, Regular Dalapon Returned to Compliance
2002-04-01 - 2005-03-31 Synthetic Organic Chemicals Monitoring, Regular Di(2-ethylhexyl) adipate Returned to Compliance
2002-04-01 - 2005-03-31 Synthetic Organic Chemicals Monitoring, Regular Di(2-ethylhexyl) phthalate Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular DICHLOROMETHANE Returned to Compliance
2002-04-01 - 2005-03-31 Synthetic Organic Chemicals Monitoring, Regular Dinoseb Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular Ethylbenzene Returned to Compliance
- 2005-03-31 Inorganic Chemicals Monitoring, Regular Fluoride Returned to Compliance
2002-04-01 - 2005-03-31 Synthetic Organic Chemicals Monitoring, Regular LASSO Returned to Compliance
- 2005-03-31 Inorganic Chemicals Monitoring, Regular Mercury Returned to Compliance
2004-04-01 - 2005-03-31 Nitrates Monitoring, Regular Nitrite Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular o-Dichlorobenzene Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular p-Dichlorobenzene Returned to Compliance
2002-04-01 - 2005-03-31 Synthetic Organic Chemicals Monitoring, Regular Pentachlorophenol Returned to Compliance
2002-04-01 - 2005-03-31 Synthetic Organic Chemicals Monitoring, Regular Picloram Returned to Compliance
- 2005-03-31 Inorganic Chemicals Monitoring, Regular Selenium Returned to Compliance
2002-04-01 - 2005-03-31 Synthetic Organic Chemicals Monitoring, Regular Simazine Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular Styrene Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular Tetrachloroethylene Returned to Compliance
- 2005-03-31 Inorganic Chemicals Monitoring, Regular Thallium, Total Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular Toluene Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular trans-1,2-Dichloroethylene Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular Trichloroethylene Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular Vinyl chloride Returned to Compliance
2002-04-01 - 2005-03-31 Volatile Organic Chemicals Monitoring, Regular Xylenes, Total Returned to Compliance
2002-07-01 - 2002-08-31 Nitrates Monitoring, Check/Repeat/Confirmation Nitrate Returned to Compliance
2001-07-01 - 2002-06-30 Nitrates Monitoring, Regular Nitrate Returned to Compliance
2002-04-01 - 2002-06-30 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
2002-01-01 - 2002-03-31 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
2001-10-01 - 2001-12-31 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
2001-07-01 - 2001-09-30 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
2001-07-01 - 2001-08-31 Nitrates Monitoring, Check/Repeat/Confirmation Nitrate Returned to Compliance
2000-07-01 - 2001-06-30 Nitrates Monitoring, Regular Nitrate Returned to Compliance
2001-04-01 - 2001-06-30 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
2000-02-01 - 2000-02-29 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
2000-01-01 - 2000-02-01 Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance
- N/A Nitrates Monitoring, Regular Nitrate Known
- N/A Nitrates Monitoring, Regular Nitrate Known
- N/A Nitrates Monitoring, Regular Nitrate Returned to Compliance
- N/A Nitrates Monitoring, Regular Nitrate Returned to Compliance
- N/A Nitrates Monitoring, Regular Nitrate 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 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 Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance

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 50271.

Water Bill Information


Convenient information about your water service.

Unable to identify any billing information about Boondocks CafÉ (IA4070201).

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.