[Dwopcert] Monitoring Tips of the Month - May 2012

[dwopcert@lists.azdeq.gov]

Monitoring Tips of the Month - May 2012
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Attention Community and Non-transient Non-community water systems on TRIENNIAL lead and copper (Pb/Cu) reduced monitoring:

Lead and Copper:

 *   To align with the intent of the rule, sampling during any year in a three year monitoring period (e.g., 2011-2013) is no longer allowed.
 *   All samples in a set must be taken in the same year;
 *   All samples must still be taken between June 1 and September 30;
 *   The set of samples must be taken every three years from one set to the next:
If you sampled in 2009, you sample again in 2012
If you sampled in 2010, you sample again in 2013
If you sampled in 2011, you sample again in 2014
If you sample in 2012, you sample again in 2015
If you sample in 2013, you sample again in 2016, etc.

To determine when you must sample next:

 *   Check the year of the last full set of samples, or the year in which the first part of the set was taken if the system sampled over the course of two or three years (be sure to check that the samples were collected between June 1 and September 30 to make sure they count for compliance):
o       If first part of the last triennial set or the entire last triennial set was last sampled in 2009, then must sample in 2012
o       If first part of the last triennial set or the entire last triennial set was last sampled in 2010, then must sample in 2013
o       If first part of the last triennial set or the entire last triennial set was last sampled in 2011, then must sample in 2014
o       Any system that sampled prior to 2009, is overdue and must sample in 2012.

Sampling Protocol:

 *   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.
 *   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.

Since this affects several hundred systems, please consult your Pb/Cu data to determine when you last sampled and when your next samples are due.  If you do not have those records, your laboratory may have the records.  Please check both before contacting the rule specialist at ADEQ.

Contact the Rule Specialist if you have any questions: Jon Fiegen 602-771-4596 or jbf@azdeq.gov<mailto:jbf@azdeq.gov>.
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Attention Community Water Systems:
On May 24, ADEQ will be hosting a Consumer Confidence Report (CCR) Workshop as part of the May ERG in Phoenix.  If you would like to attend, please register for the ERG Workshop at http://www.azdeq.gov/environ/water/dw/other.html and then contact Noah Adams informing him you want to attend the CCR class.

Noah Adams can be reached at 602-771-4511, or nra@azdeq.gov<mailto:nra@azdeq.gov>.

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