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This guide describes the protocol for identifying lead and copper problems in the water entering school facilities.
The protocol below is designed to identify lead and copper problems at taps and upstream plumbing within school facilities and in the water entering facilities.
Schools must include the School Organization Code, assigned by Massachusetts Department of Elementary and Secondary Education, in their sampling code and sample collection chain of custody form.
Code each outlet using a system that will allow you to identify each unique outlet by:
Within a School Organization Code, assigned by Massachusetts Department of Elementary and Secondary Education or the Massachusetts Department of Early Education and Care, each fixture to be sampled must be assigned a unique Location Code. These codes should be assigned sequentially (e.g. from 001 to XXX).
Each fixture to be sampled must be assigned a location type from the list below:
DW= drinking water bubbler
WC = water cooler (chiller unit)
CF = classroom faucet
KC = kitchen faucet, cold
KK = kitchen kettle [designate cold or hot in Location Name]
KI = kitchen ice maker
EC = home economics room, cold
BF = bathroom faucet [designate cold or hot in Location Name]
NS = nurse's office sink [designate cold or hot in Location Name]
SC = service connector
OT = other
Each fixture to be sampled must be assigned a location name.
A drinking water bubbler (DW) on the 2nd floor of the Abbey Kelley Foster Charter Public School is identified as the 10th sample location in the building, which happens to be the only building for this Organization Code.
First, determine the Organization Code from the List of Schools.
The numbering scheme would look like this:
OrgCode - Location Code - Location Type - Location Name
00450105-010-DW-Second Floor Bubbler near RM 210
If a school has multiple buildings with the same Org Code, it will be necessary to add specific building information to the label code. For example: 00450105-10-DW-Second Floor Bubbler near RM 210 - Abbott building
Once the ID number has been assigned, label its location on the Map of LCCA Taps and label the actual physical fixture. Once each fixture has been labeled, school personnel should ensure that the label is not removed or damaged. A digital photograph of the location would help to maintain a record of the labeled fixture.
How to Collect and Initial (First Draw) Sample
How to Collect a 30 Second Flushed Sample
Please Note: If a school has an established and documented flushing program, an initial (first draw) sample is not necessary. An established and documented flushing program consists of a written operational plan and a daily log of all the fixtures and the flush time. If this is the case, the school should take flush samples only and should take them after they implement their normal flushing plan in the morning.
If the result of your initial first draw sample was higher than the Action Level, particulate lead and copper trapped in the aerator or screen of the outlet may be contributing to the elevated levels of lead and copper. By cleaning the aerator or screen and retesting the water following the initial first draw sampling procedures, you can identify whether or not the debris in the aerator or screen of the tap is a contributing source to elevated levels.
How to Collect a Second First Draw Sample
After cleaning the aerator or screen, follow the procedures described listed above for fountains/faucets.
How to Collect a Flush (Follow-Up) Sample
If after cleaning the aerator or screen for a fixture the sample results are still higher than the Action Level or if there is no aerator/screen, collect a 30 second flush sample to determine if the fixture itself is a contributing factor to elevated lead or copper concentrations, or if the source is elsewhere in the plumbing system.
How to Collect Samples:
Initial Screening Sample (A)
If the lead level in Sample A exceeds 0.015 mg/L or copper level in Sample A exceeds 1.3 mg/L, collect a follow-up sample to determine if the source of the lead or copper is the plumbing or the ice making machine itself
Follow-Up Sample (B)