[Dwopcert] Tip of the Month

[dwopcert@lists.azdeq.gov]

*NEW* ADEQ Monitoring Tips of the Month - July 2010

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If your Community or Non-transient Non-community water system is on an
INITIAL LEAD and COPPER TAP SAMPLING schedule, now is the time to
prepare for the second half of the year monitoring.  NOTE: If you are on
annual or triennial sampling, or are a transient noncommunity system,
this tip does not apply to your system.

 

Initial Lead and Copper Sampling:

*         Two, consecutive, six-month sets of samples need to be
collected:

*         Between January 1 - June 30; and July 1 - December 31; or


*         Between July 1 - December 31; and January 1 - June 30

*         Consult the public water system's Lead and Copper Site
Sampling Plan for locations to monitor, and to see if you need to update
the plan prior to sampling.

*         Make sure you know how many samples are required...changes in
population can affect the required number of samples.  

*         Initial tap sampling is normally twice the number of annual or
triennial sampling (except for systems serving < 100):

 

System Size

(# of persons served)

Number of Sites

> 100,000

100

10,001 - 100,000

60

3,301 - 10,000

40

501 - 3,300

20

101 - 500

10

< 100

5


 

*         You must take a 'first draw' tap water sample:

*         Water must have remained motionless for at least six hours
prior to sample collection

*         Interior COLD water tap typically used for consumption

*         Kitchen, bathroom, water fountain, etc.

*         1 Liter container.

 

Contact the Rule Specialist if you have any questions: Jon Fiegen
602-771-4596 or jbf@azdeq.gov

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Reporting Requirements:

 

Frequently Asked Question: When do analytical results have to be
submitted?

Please refer to R18-4-106.  Reporting and Recordkeeping - 40 CFR 141,
Subpart D:

*      Analytical results submitted on the approved ADEQ reporting forms
are due 1) within 10 days after the end of the month in which the PWS
receives the analytical result, OR 2) within 10 days after the end of
the applicable monitoring period, whichever occurs first.

 

Contact the Drinking Water Monitoring and Protection Unit Manager if you
have any questions: Donna Calderon 602-771-4641 or dml@azdeq.gov

 

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