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Revised Total Coliform Rule:Sample Site Form
Why do I need to develop a Revised Total Coliform Rule Sample Site Plan?
The Revised Total Coliform Rule Sample Site Plan is a written plan that identifies sample sites for routine coliform monitoring. The plan must be reviewed and approved by DEQ to ensure it meets all requirements. All Community Public Water Supplies must submit an initial Revised Total Coliform Rule Sample Site Form to DEQ by March 31, 2016.
The Revised Total Coliform Rule Sample Site Form includes the following items that must be completed:
1. Standard operating procedure (SOP) for Revised Total Coliform Rule monitoring2. List of routine sample sites3. For water systems serving groundwater, locations for triggered monitoring4. Revised Total Coliform Rule water system map
First review the Revised Total Coliform Rule Sample Site Plan General Requirements and then complete the Revised Total Coliform Rule Sample Site Template on the following pages.
Return a copy of the completed Revised Total Coliform Rule Sample Site Template along with water system map via mail, email or fax to:
Attn: PWS ComplianceDEQ-WQDP.O. Box 1677OKC, OK 73101-1677Fax: (405) 702-8101Phone: (405) 702-8100
If you have any questions, please contact PWS Compliance.
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Revised Total Coliform Rule:Sample Site Form
A. Revised Total Coliform Rule Sample Site Plan General Requirements
1. Standard operating procedure (SOP) for Revised Total Coliform Rule monitoring
Your water system’s SOP for Revised Total Coliform Rule monitoring will prescribe how monitoring is conducted. Complete your water system’s SOP in Part 1. Revised Total Coliform Rule Monitoring SOP of the template. The SOP should include:
Number of routine samples required each month. See Table 1. Revised Total Coliform Rule Minimum Number of Monthly Routine Samples to determine the number of samples your water system must collect each month.
Description of how all areas of the distribution system, including areas of concern, are represented by the routine sample sites.
Description of how all routine sample sites will be used on a rotating basis to ensure representative sampling.
Description of how routine samples will be collected at regular intervals throughout the month. (An exception is water systems using only groundwater with a population below 4900, which can collect all samples on the same day.)
Requirement for three repeat samples following a total coliform positive routine sample. Criteria for choosing repeat sample sites. Description of how triggered monitoring of groundwater sources will be conducted, for
water systems serving groundwater.
2. List of routine sample sites
Your routine sample sites should be selected carefully so that you obtain representative samples of your entire water distribution system. Choose as many routine sample sites as you need to represent the entire water distribution system. Add routine sample sites in Part 2. Revised Total Coliform Rule Routine Sample Sites of the template. Considerations include:
Routine sample sites may be a customer’s premise, a dedicated sampling station, or another designated compliance monitoring location.
Routine sample sites must be listed with a street address (or 911 address), if available. Routine sample site codes will take the form of TC001, TC002, TC003, etc. Suitable repeat sample sites within 5 service connections upstream and downstream of
each routine sample site must be available. However, repeat sample sites should not be listed because there is flexibility to use any suitable sample site within 5 service connections for repeat monitoring.
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Revised Total Coliform Rule:Sample Site Form
Areas of concern in the distribution system should be represented in the routine sample sites to ensure representative sampling. Such areas include:
o Dead endso Low pressure zoneso Areas with longer retention timeso Upstream and downstream of storage tankso Areas serving water from different sources
Sample sites with the following types of faucets are NOT recommended:o Ball-joint faucets with a single valve for hot and cold watero Swivel faucets that swing back and fortho Outdoor faucetso Faucets with leaky packing material around the stemo Faucets with a treatment device in use, such as an on-site water softener or filtero Faucets that face upward or sidewayso Frost-free hydrantso Faucets with threads on the inside of the spouto Faucets at janitorial, commercial, or kitchen sinks where bacteriological
contamination is likely
3. For water systems serving groundwater, locations for triggered monitoring
If your water system serves groundwater, you must submit a list of all groundwater triggered monitoring locations for all wells subject to triggered monitoring under the Ground Water Rule. Add triggered sample sites in Part 3. GWR Triggered Monitoring Sample Sites of the template.
4. Revised Total Coliform Rule Water System Map
Your Revised Total Coliform Rule Water System Map should show the entire area of your distribution system. Requirements for the water system map include:
Your Revised Total Coliform Rule Water System Map should be submitted on an 8.5 x 11 sheet of paper.
All routine sample sites must be shown on the map. (Again, keep in mind that suitable repeat sample sites must be available within 5 service connections upstream and downstream from each routine sample site.)
All storage facilities such as tanks, stand pipes, and water towers must be shown on the map.
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Revised Total Coliform Rule:Sample Site Form
All water treatment facilities, such as treatment plants and chlorination stations, must be shown on the map.
All water sources, such as wells, surface water intakes, and connections to other public water supplies. If water sources are located off the map, indicate where the source water enters the distribution system on the map.
Mapping websites can provide an aerial view of your water system to assist with creating your map:
o Google Maps at www.google.com/mapso DEQ’s Flex Viewer at www.deq.state.ok.us/mainlinks/gis/index.html
Hand-drawn maps are acceptable as long as they are legible and an accurate representation of the water system.
Table 1. Revised Total Coliform Rule Minimum Number of Monthly Routine Samples
Population Served Minimum Number of Samples per Month Population Served Minimum Number of
Samples per Month
0 to 1,000 1 59,001 to 70,000 701,001 to 2,500 2 70,001 to 83,000 802,501 to 3,300 3 83,001 to 96,000 903,301 to 4,100 4 96,001 to 130,000 1004,101 to 4,900 5 130,001 to 220,000 1204,901 to 5,800 6 220,001 to 320,000 1505,801 to 6,700 7 320,001 to 450,000 1806,701 to 7,600 8 450,001 to 600,000 2107,601 to 8,500 9 600,001 to 780,000 240
8,501 to 12,900 10 780,001 to 970,000 27012,901 to 17,200 15 970,001 to 1,230,000 30017,201 to 21,500 20 1,230,001 to 1,520,000 33021,501 to 25,000 25 1,520,001 to 1,850,000 36025,001 to 33,000 30 1,850,001 to 2,270,000 39033,001 to 41,000 40 2,270,001 to 3,020,000 42041,001 to 50,000 50 3,020,001 to 3,960,000 45050,001 to 59,000 60 3,960,001 or more 480
B. Revised Total Coliform Rule Sample Site Template
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Revised Total Coliform Rule:Sample Site Form
Part 1. Standard operating procedure (SOP) for Revised Total Coliform Rule monitoring
PWS Name: ___________________________________________ Date: __________________ Address: _________________________________________ PWSID No.: _________________ County: ________________ Population: ____________ Minimum Number of Samples: _____Contact Person: ___________________________ Title: _______________________________Phone: __________________ Fax: ___________________ Cell: _______________________
Email: ________________________________________________________________________
Describe your water system’s SOP for Revised Total Coliform Rule monitoring. Your SOP will prescribe how your water system will conduct monitoring and must address the following points:
Number of routine samples required each month How the entire distribution system, including areas of concern, is represented by routine sample sites How routine sample sites will be used on a rotating basis How routine samples will be collected at regular intervals throughout the month
Exception: Groundwater systems serving fewer than 4900 people can collect all samples on the same day Criteria for choosing three repeat sample sites following a total coliform positive sample For groundwater systems, how triggered monitoring will be conducted
______________________________________________________________________________
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Part 2. Revised Total Coliform Rule Routine Sample Sites
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Revised Total Coliform Rule:Sample Site Form
PWS Name: ________________________________________ Date: __________________ Address: _________________________________________ PWSID No.: _________________ County: ________________ Population: ____________ Minimum Number of Samples: _____
Sample Site Location Code Sample Site Location Description
Example:TC001
Example:21300 SE 12th Ave.
TC001TC002TC003TC004TC005TC006TC007TC008TC009TC010TC011TC012TC013TC014TC015TC016TC017TC018TC019TC020TC021TC022
Part 2. Revised Total Coliform Rule Routine Sample Sites, cont’d
PWS Name: ________________________________________ Date: __________________
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Revised Total Coliform Rule:Sample Site Form
Address: _________________________________________ PWSID No.: _________________ County: ________________ Population: ____________ Minimum Number of Samples: _____
Sample Site Location Code Sample Site Location Description
Example:TC001
Example:21300 SE 12th Ave.
TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______TC_______
Part 3. GWR Triggered Monitoring Sample Sites
PWS Name: ________________________________________ Date: __________________ Address: _________________________________________ PWSID No.: _________________
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Revised Total Coliform Rule:Sample Site Form
County: ________________ Population: ____________ Minimum Number of Samples: _____
Sample Site Location Code Sample Site Location Description
Example:WL001
Example:Well 1
WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______WL_______
*attach as many sheets as necessary to list all wells
Part 4. Revised Total Coliform Rule Water System Map
PWS Name: ________________________________________ Date: __________________ Address: _________________________________________ PWSID No.: _________________
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Revised Total Coliform Rule:Sample Site Form
County: ________________ Population: ____________ Minimum Number of Samples: _____
Attach the 8.5 x 11 map of your water system labeled with PWS Name and PWSID Number. Label sample sites with the sample site location code, storage facilities, treatment facilities and water sources. Example maps are provided in Table 2. Map of Small PWS, Table 3. Map of Rural PWS, and Table 4. Map of Large PWS.
Part 5. Submit Copy of Revised Total Coliform Rule Plan and Map to DEQ
Return a copy of the completed Revised Total Coliform Rule Sample Site Template (pages 5 - 9) along with your water system map via mail, email or fax to:
Attn: PWS ComplianceDEQ-WQDP.O. Box 1677OKC, OK 73101-1677Fax: (405) 702-8101Phone: (405) 702-8100
If you have any questions, please contact PWS Compliance.
Table 2. Map of Small PWS (This example Revised Total Coliform Rule Water System Map was created using Google Maps and Microsoft Word.)
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