&EPA
          United States
          Environmental Protection
          Agency
Ground  Water Rule (GWR)  Monitoring Requirements
Wholesale Systems  Conducting Triggered Source Water  Monitoring
See additional placards for requirements for systems with their own source that do not purchase water or sell water to another system,
consecutive systems, and those providing 4-log treatment of viruses and conducting compliance monitoring
TOTAL COLIFORM-POSITIVE
Total Coliform Rule (from your system or a consecutive system that receives your
water) unless you are conducting compliance monitoring for 4-log treatment of
• Conduct triggered source water monitoring at each ground water well WITHIN
  24 HOURS1 of being notified of a total coliform-positive routine sample.
• If you suspect the total coliform-positive routine sample was caused by a
  distribution system problem, contact your state to discuss options.
• Sample from each source in use at the time the total coliform-positive routine
  sample was taken for every total coliform-positive routine sample, unless the
  state has approved representative monitoring.
 - Your state may allow you to use representative source water monitoring to
   reduce the number of samples collected. Contact your state for approval.
• Sample for the state-approved fecal indicator. Contact your state to determine
  which one(s) is approved and list here:
  Contact your state to ensure you are following the correct sampling
  procedures and contact your lab to ensure you are using the appropriate
  materials for monitoring. If your system serves <1,000 people, you may be
  able to use Total Coliform Rule repeat monitoring collected from a ground
  water source to meet GWR requirements. Contact your state for more
  information.
                             FECAL INDICATOR-POSITIVE

                             If your triggered source water
                             monitoring results are fecal indicator-
                             positive you must:
                              Notify ALL CONSECUTIVE SYSTEMS
                              served by any source(s) with a fecal
                              indicator-positive sample WITHIN
                              24 HOURS of the sample result.
                              Notify your state and if your state
                              does not require corrective action,
                              collect 5 additional source water
                              samples WITHIN 24 HOURS.1
                              The state may invalidate a fecal
                              indicator-positive sample on a case-
                              by-case basis. Contact your state. If
                              your sample is invalidated, you must
                              resample for the same indicator
                              WITHIN 24 HOURS.1
                              Notify the public with a Tier 1 Public
                              Notice (PN) WITHIN 24 HOURS.
                              Community water systems must
                              notify the public with Special Notice
                              in your next CCR.
ADDITIONAL MONITORING

If your fecal indicator source
water sample is positive then
the state may require additional
monitoring:
Take 5 samples from each source
that was fecal indicator-positive
WITHIN 24 HOURS.1
• If an additional sample is fecal-
  indicator positive, you must:
 - Notify the public with a Tier 1
   PN WITHIN 24 HOURS.
 - Community water systems
   must notify the public with a
   Special Notice in your next
   CCR.
 - Notify consecutive systems.
 - Consult with your state and
   take approved Corrective
   Action.
                               CORRECTIVE ACTION
Footnote 1: The state may provide more time on a case-by-case basis. Contact your state if you face circumstances beyond your control.

Footnote 2: For this violation you must notify the state within 48 hours of the violation and provide a Tier 2 PN to the public within 30 days.
If you fail to conduct required monitoring within 24 hours of notification of a total coliform- or fecal indicator-positive sample, you must notify the public with a
Tier 3 PN (possibly in your next CCR).

The term "state" is used to refer to all types of primacy agencies including states, U.S. territories, Indian tribes, and EPA.
Laboratory Contact Information:
                               You have to take correctiv
                               notified of a fecal indicator-po:
                               sample, a significant deficiency, or if the state
                               requires it in response to a fecal indicator-
                               positive triggered or assessment sample.
                               • A significant deficiency may be identified
                                 during a sanitary survey or at any other time.
                               • You are required to provide the state with
                                 information requested to complete a
                                 sanitary survey.
                               • Within 30 days of notification you  must
                                 consult with your state to determine a
                                 corrective action unless the state specifies a
                                 corrective action.
                               • Corrective Action options are:
                                - Correct all  significant deficiencies
                                - Provide an alternate source of water
                                - Eliminate the source of contamination
                                - Provide 4-log treatment of viruses.
                               • Within 120  days of notification you
                                 must complete corrective action, or be in
                                 compliance with state-approved corrective
                                 action plan  and schedule.
                               • If you fail to take corrective action,  you will
                                 incur a treatment technique violation and
                                 must notify the public with a Tier 2 PN.2
                               • Community water systems: If you have not
                                 corrected the significant deficiency before
                                 the end of the calendar year, you must notify
                                 the public with a Special Notice in your next
                                 CCR and repeat annually until the significant
                                 deficiency has been addressed.
                               • Noncommunity water systems: If you have
                                 not corrected the significant deficiency within
                                 12 months,  you must notify the public with a
                                 Special Notice and repeat annually until the
                                 significant deficiency has been addressed.
Consecutive Systems' Contact Information:
You are required to notify all consecutive systems served by any source(s) with a fecal indicator-positive sample WITHIN 24 HOURS. Please ensure that all consecutive systems' contact
information is available and provided below to ensure that they can be contacted within the appropriate timeframe.
Name:	 Phone Number:	  Name:	 Phone Number:	
Name:
                                            Phone Number:
                                               Name:
                                                                                           Phone Number:
State/Primacy Agency Contact (name and phone number):.
                                                   Office of Water (4606M)    EPA 816-F-10-059   www.epa.gov/safewater   April 2010

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