logging in or signing up sitesamp 6 Teresa1 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 38 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: February 25, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Coliform Sample Siting Plan: Coliform Sample Siting Plan Ken Morin, P.E. BLM National Applied Resource Sciences CenterColiform Sampling 40 CFR 141.21(a)(1): Coliform Sampling 40 CFR 141.21(a)(1) Routine monitoring. Public water systems must collect total coliform samples at sites which are representative of the water throughout the distribution system according to a written sample siting plan. These plans are subject to State review and revision.Coliform Sample Siting Plan : Coliform Sample Siting Plan Plan elements are not defined in the regulations. Very brief guidance is available from some States. New BLM Drinking Water Manual will provided detailed requirements.Recommended Elements in Sample Siting Plan : Recommended Elements in Sample Siting Plan Map showing the following: Distribution system Storage Treatment Taps Identification name/number for each tapRecommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] Break Distribution System into Zones if it is Looped or has Different Pressure Zones. Alternate Samples Between Zones Focus Samples At: Dead ends Heaviest use tapsRecommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] Routine Sample Schedule Sample to be taken early in month/quarter Quarter defined as Jan. - March, etc. Sampling Procedures How to Fill Out Lab FormRecommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] Description of Sampling that Must be Done if a Routine Sample Tests Positive [141.21(b)(2)] Do Not Disinfect Following a Positive Routine Sample Actions to be Taken if a Repeat Sample Tests Positive [ 141.21(b)(4)]Recommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] “Increased” Routine Samples Must be Taken Regardless of Whether Any Repeat Sample Tests Positive [141.21(b)(5)] Public Notification Requirements [141.21(g) and 141.32] Two positives in one month exceeds MCL [141.63(a)(2)] Failure to monitor for coliforms [141.21(g)(2)]Recommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] Disinfection Procedures for: Well Storage tank Distribution systemRecommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] Water System Startup Procedures Opening and closing which valves Disinfection procedures for storage and distribution Satisfactory coliform result prior to opening Operational Testing FrequencyRecommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] Water System Shutdown Procedures Opening and closing which valves Draining distribution and storage Equipment to be brought back from the fieldRecommended Elements in Sample Siting Plan [concluded]: Recommended Elements in Sample Siting Plan [concluded] Recordkeeping Requirements State Reporting Requirements for: Positive repeat coliform result Public notification postings Operational testing results State Certification RequirementsSampling Following a Positive - 1 Tap: Sampling Following a Positive - 1 Tap One Repeat Sample [141.21(b)(3)] Four 100 mL samples: first taken early in morning second taken 2 or 3 hours later third taken 2 or 3 hours after second fourth taken 2 or 3 hours after third Refrigerate or ice samples awaiting shipment to labSampling Following a Positive - 1 Tap [concluded]: Sampling Following a Positive - 1 Tap [concluded] Five “Increased” Routine Samples [141.21(b)(5)] Routine samples must be taken in month following the positive [40 CFR 141.21(b)(5)] Routine samples must be taken at regular time intervals throughout the month [141.21(a)(4)] Therefore a sample must be taken every 5 or 6 daysSampling Following a Positive - 2 Taps : Sampling Following a Positive - 2 Taps Four Repeat Samples [141.21(b)(2)] One sample from each tap taken early in morning One sample from each tap taken as late as possible the same day Repeat samples must be taken on the same day [141.21(b)(3)]Sampling Following a Positive - 2 Taps [concluded]: Sampling Following a Positive - 2 Taps [concluded] Five “Increased” Routine Samples [141.21(b)(5)] Routine samples must be taken at regular time intervals throughout the month [141.21(a)(4)] one sample from each tap at the beginning of the month one sample from each tap at the middle one sample from original positive tap at the end of the monthSampling Following a Positive - 3 Taps: Sampling Following a Positive - 3 Taps Four Repeat Samples [141.21(b)(2)] One sample from each tap taken early in morning One sample from the original positive tap taken as late as possible the same day Repeat samples must be taken on the same day [141.21(b)(3)]Sampling Following a Positive - 3 Taps [concluded]: Sampling Following a Positive - 3 Taps [concluded] Five “Increased” Routine Samples [141.21(b)(5)] Routine samples must be taken at regular time intervals throughout the month [141.21(a)(4)] One sample from each tap at the beginning of the month One sample from original positive tap and any other tap at the middle of the monthSampling Following a Positive - 4 Taps: Sampling Following a Positive - 4 Taps Four Repeat Samples [141.21(b)(2)] One sample from each tap Repeat samples must be taken on the same day [141.21(b)(3)] Samples are to be taken within 24 hours of notification of positive [141.21(b)(1)]Sampling Following a Positive - 4 Taps [concluded]: Sampling Following a Positive - 4 Taps [concluded] Five “Increased” Routine Samples [141.21(b)(5)] Routine samples must be taken at regular time intervals throughout the month [141.21(a)(4)] One sample from each tap at the beginning of the month One sample from original positive tap at the middle of the monthSampling Following a Positive - 5 to 7 Taps: Sampling Following a Positive - 5 to 7 Taps Four Repeat Samples [141.21(b)(2)] One sample from original positive tap Other samples from any three different taps Repeat samples must be taken on the same day [141.21(b)(3)] Samples are to be taken within 24 hours of notification of positive [141.21(b)(1)]Sampling Following a Positive - 5 to 7 Taps [concl’d]: Sampling Following a Positive - 5 to 7 Taps [concl’d] Five “Increased” Routine Samples [141.21(b)(5)] Systems that serve < 4,900 persons may collect all required samples on a single day if they are taken from different taps [141.21(a)(4)] One sample from original positive tap at the beginning of the month Four other samples any four different tapsSampling Following a Positive 8 or More Taps: Sampling Following a Positive 8 or More Taps Four Repeat Samples to be Taken per 141.21(b)(2) Five “Increased” Routine Samples Taken From 5 Different Taps on the Same Day [141.21(b)(5) & (a)(4)] One of the samples should be taken at the original positive tapRepeat Sample Collection: Repeat Sample Collection Four Repeat Samples Must be Taken [141.21(b)(1)] Samples to be Taken Within 24 Hours of Positive Result Notification [141.21(b)(1)] Repeat Sample Locations [141.21(b)(2)] All Repeats to be Taken on Same Day [141.21(b)(3)]Repeat Sample Collection: Repeat Sample Collection If Any Repeat Tests Positive Another Set of Repeats Must be Taken; [141.21(b)(4)] or Notify the State that the Coliform MCL has been Violated per 141.63 [141.21(b)(4)] State May Still Require Additional SamplingRepeat Sample Collection: Repeat Sample Collection System with One Tap May Collect One Repeat Sample Each Day for Four Days; or Collect a Single 400 mL Sample [141.21(b)(3)] This should be a composite sample“Increased” Routine Sample Collection: “Increased” Routine Sample Collection Five “Increased” Routine Samples Must be Taken in the Month Following a Positive Sample [141.21(b)(5)] Collect Samples at Regular Time Intervals Throughout the Month [141.21(a)(4)] Except Systems that Serve < 4,900 Persons May collect all required samples on a single day if they are taken from different taps [141.21(a)(4)] You do not have the permission to view this presentation. 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sitesamp 6 Teresa1 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 38 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: February 25, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Coliform Sample Siting Plan: Coliform Sample Siting Plan Ken Morin, P.E. BLM National Applied Resource Sciences CenterColiform Sampling 40 CFR 141.21(a)(1): Coliform Sampling 40 CFR 141.21(a)(1) Routine monitoring. Public water systems must collect total coliform samples at sites which are representative of the water throughout the distribution system according to a written sample siting plan. These plans are subject to State review and revision.Coliform Sample Siting Plan : Coliform Sample Siting Plan Plan elements are not defined in the regulations. Very brief guidance is available from some States. New BLM Drinking Water Manual will provided detailed requirements.Recommended Elements in Sample Siting Plan : Recommended Elements in Sample Siting Plan Map showing the following: Distribution system Storage Treatment Taps Identification name/number for each tapRecommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] Break Distribution System into Zones if it is Looped or has Different Pressure Zones. Alternate Samples Between Zones Focus Samples At: Dead ends Heaviest use tapsRecommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] Routine Sample Schedule Sample to be taken early in month/quarter Quarter defined as Jan. - March, etc. Sampling Procedures How to Fill Out Lab FormRecommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] Description of Sampling that Must be Done if a Routine Sample Tests Positive [141.21(b)(2)] Do Not Disinfect Following a Positive Routine Sample Actions to be Taken if a Repeat Sample Tests Positive [ 141.21(b)(4)]Recommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] “Increased” Routine Samples Must be Taken Regardless of Whether Any Repeat Sample Tests Positive [141.21(b)(5)] Public Notification Requirements [141.21(g) and 141.32] Two positives in one month exceeds MCL [141.63(a)(2)] Failure to monitor for coliforms [141.21(g)(2)]Recommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] Disinfection Procedures for: Well Storage tank Distribution systemRecommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] Water System Startup Procedures Opening and closing which valves Disinfection procedures for storage and distribution Satisfactory coliform result prior to opening Operational Testing FrequencyRecommended Elements in Sample Siting Plan [continued]: Recommended Elements in Sample Siting Plan [continued] Water System Shutdown Procedures Opening and closing which valves Draining distribution and storage Equipment to be brought back from the fieldRecommended Elements in Sample Siting Plan [concluded]: Recommended Elements in Sample Siting Plan [concluded] Recordkeeping Requirements State Reporting Requirements for: Positive repeat coliform result Public notification postings Operational testing results State Certification RequirementsSampling Following a Positive - 1 Tap: Sampling Following a Positive - 1 Tap One Repeat Sample [141.21(b)(3)] Four 100 mL samples: first taken early in morning second taken 2 or 3 hours later third taken 2 or 3 hours after second fourth taken 2 or 3 hours after third Refrigerate or ice samples awaiting shipment to labSampling Following a Positive - 1 Tap [concluded]: Sampling Following a Positive - 1 Tap [concluded] Five “Increased” Routine Samples [141.21(b)(5)] Routine samples must be taken in month following the positive [40 CFR 141.21(b)(5)] Routine samples must be taken at regular time intervals throughout the month [141.21(a)(4)] Therefore a sample must be taken every 5 or 6 daysSampling Following a Positive - 2 Taps : Sampling Following a Positive - 2 Taps Four Repeat Samples [141.21(b)(2)] One sample from each tap taken early in morning One sample from each tap taken as late as possible the same day Repeat samples must be taken on the same day [141.21(b)(3)]Sampling Following a Positive - 2 Taps [concluded]: Sampling Following a Positive - 2 Taps [concluded] Five “Increased” Routine Samples [141.21(b)(5)] Routine samples must be taken at regular time intervals throughout the month [141.21(a)(4)] one sample from each tap at the beginning of the month one sample from each tap at the middle one sample from original positive tap at the end of the monthSampling Following a Positive - 3 Taps: Sampling Following a Positive - 3 Taps Four Repeat Samples [141.21(b)(2)] One sample from each tap taken early in morning One sample from the original positive tap taken as late as possible the same day Repeat samples must be taken on the same day [141.21(b)(3)]Sampling Following a Positive - 3 Taps [concluded]: Sampling Following a Positive - 3 Taps [concluded] Five “Increased” Routine Samples [141.21(b)(5)] Routine samples must be taken at regular time intervals throughout the month [141.21(a)(4)] One sample from each tap at the beginning of the month One sample from original positive tap and any other tap at the middle of the monthSampling Following a Positive - 4 Taps: Sampling Following a Positive - 4 Taps Four Repeat Samples [141.21(b)(2)] One sample from each tap Repeat samples must be taken on the same day [141.21(b)(3)] Samples are to be taken within 24 hours of notification of positive [141.21(b)(1)]Sampling Following a Positive - 4 Taps [concluded]: Sampling Following a Positive - 4 Taps [concluded] Five “Increased” Routine Samples [141.21(b)(5)] Routine samples must be taken at regular time intervals throughout the month [141.21(a)(4)] One sample from each tap at the beginning of the month One sample from original positive tap at the middle of the monthSampling Following a Positive - 5 to 7 Taps: Sampling Following a Positive - 5 to 7 Taps Four Repeat Samples [141.21(b)(2)] One sample from original positive tap Other samples from any three different taps Repeat samples must be taken on the same day [141.21(b)(3)] Samples are to be taken within 24 hours of notification of positive [141.21(b)(1)]Sampling Following a Positive - 5 to 7 Taps [concl’d]: Sampling Following a Positive - 5 to 7 Taps [concl’d] Five “Increased” Routine Samples [141.21(b)(5)] Systems that serve < 4,900 persons may collect all required samples on a single day if they are taken from different taps [141.21(a)(4)] One sample from original positive tap at the beginning of the month Four other samples any four different tapsSampling Following a Positive 8 or More Taps: Sampling Following a Positive 8 or More Taps Four Repeat Samples to be Taken per 141.21(b)(2) Five “Increased” Routine Samples Taken From 5 Different Taps on the Same Day [141.21(b)(5) & (a)(4)] One of the samples should be taken at the original positive tapRepeat Sample Collection: Repeat Sample Collection Four Repeat Samples Must be Taken [141.21(b)(1)] Samples to be Taken Within 24 Hours of Positive Result Notification [141.21(b)(1)] Repeat Sample Locations [141.21(b)(2)] All Repeats to be Taken on Same Day [141.21(b)(3)]Repeat Sample Collection: Repeat Sample Collection If Any Repeat Tests Positive Another Set of Repeats Must be Taken; [141.21(b)(4)] or Notify the State that the Coliform MCL has been Violated per 141.63 [141.21(b)(4)] State May Still Require Additional SamplingRepeat Sample Collection: Repeat Sample Collection System with One Tap May Collect One Repeat Sample Each Day for Four Days; or Collect a Single 400 mL Sample [141.21(b)(3)] This should be a composite sample“Increased” Routine Sample Collection: “Increased” Routine Sample Collection Five “Increased” Routine Samples Must be Taken in the Month Following a Positive Sample [141.21(b)(5)] Collect Samples at Regular Time Intervals Throughout the Month [141.21(a)(4)] Except Systems that Serve < 4,900 Persons May collect all required samples on a single day if they are taken from different taps [141.21(a)(4)]