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 monitoring
2. List of routine sample sites
3. For water systems serving groundwater, locations for triggered monitoring
4. 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 Compliance
DEQ-WQD
P.O. Box 1677
OKC, OK 73101-1677
Fax: (405) 702-8101
Phone: (405) 702-8100
If you have any questions, please contact PWS Compliance.
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.
· Areas of concern in the distribution system should be represented in the routine sample sites to ensure representative sampling. Such areas include:
o Dead ends
o Low pressure zones
o Areas with longer retention times
o Upstream and downstream of storage tanks
o 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 water
o Swivel faucets that swing back and forth
o Outdoor faucets
o Faucets with leaky packing material around the stem
o Faucets with a treatment device in use, such as an on-site water softener or filter
o Faucets that face upward or sideways
o Frost-free hydrants
o Faucets with threads on the inside of the spout
o 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.
· 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/maps
o 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 Month0 to 1,000 / 1 / 59,001 to 70,000 / 70
1,001 to 2,500 / 2 / 70,001 to 83,000 / 80
2,501 to 3,300 / 3 / 83,001 to 96,000 / 90
3,301 to 4,100 / 4 / 96,001 to 130,000 / 100
4,101 to 4,900 / 5 / 130,001 to 220,000 / 120
4,901 to 5,800 / 6 / 220,001 to 320,000 / 150
5,801 to 6,700 / 7 / 320,001 to 450,000 / 180
6,701 to 7,600 / 8 / 450,001 to 600,000 / 210
7,601 to 8,500 / 9 / 600,001 to 780,000 / 240
8,501 to 12,900 / 10 / 780,001 to 970,000 / 270
12,901 to 17,200 / 15 / 970,001 to 1,230,000 / 300
17,201 to 21,500 / 20 / 1,230,001 to 1,520,000 / 330
21,501 to 25,000 / 25 / 1,520,001 to 1,850,000 / 360
25,001 to 33,000 / 30 / 1,850,001 to 2,270,000 / 390
33,001 to 41,000 / 40 / 2,270,001 to 3,020,000 / 420
41,001 to 50,000 / 50 / 3,020,001 to 3,960,000 / 450
50,001 to 59,000 / 60 / 3,960,001 or more / 480
B. Revised Total Coliform Rule Sample Site Template
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
PWS Name: ______Date: ______
Address: ______PWSID No.: ______
County: ______Population: ______Minimum Number of Samples: _____
Sample Site Location Code / Sample Site Location DescriptionExample:
TC001 / Example:
21300 SE 12th Ave.
TC001
TC002
TC003
TC004
TC005
TC006
TC007
TC008
TC009
TC010
TC011
TC012
TC013
TC014
TC015
TC016
TC017
TC018
TC019
TC020
TC021
TC022
Part 2. Revised Total Coliform Rule Routine Sample Sites, cont’d
PWS Name: ______Date: ______
Address: ______PWSID No.: ______
County: ______Population: ______Minimum Number of Samples: _____
Sample Site Location Code / Sample Site Location DescriptionExample:
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.: ______
County: ______Population: ______Minimum Number of Samples: _____
Sample Site Location Code / Sample Site Location DescriptionExample:
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.: ______
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 Compliance
DEQ-WQD
P.O. Box 1677
OKC, OK 73101-1677
Fax: (405) 702-8101
Phone: (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.)
RTCR-4-C
Revised Jan 2016 Page 10 of 12