Preparation of a Drinking Water Survey Report Page: 4
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Preparation of a Drinking Water Survey Report
RD and, at a later date, submitted an assessment report that included a
discussion of potential receptors, such as the location and use of
surrounding water wells. In order for the RD to meet the 30-day time
frame, the regulated community must provide information on water wells
at the same time that the case of groundwater contamination is initially
reported, and must update information when submitting assessment data
that indicates an increase in the known extent of the groundwater plume.
Therefore, you should complete and submit a Drinking Water Survey
Report when reporting a new case of groundwater contamination to the
RD, when reporting additional assessment activities to further delineate
the plume, or any time you are requested to do so by the RD. The
submission of a Drinking Water Survey Report will ensure that the RD is
alerted and provided sufficient information to evaluate Section 26.408
applicability and complete any required notifications within the
statutorily required 30-day time frame.
If a Drinking Water Survey Report is not submitted when a new case of
groundwater contamination is reported to the RD, the RD will request that
one be submitted. The deadline for submitting the Drinking Water Survey
Report will be based upon the suspected presence or absence of an
imminent threat to a private drinking water well. If an imminent threat to
a private drinking water well is identified, the request and submission of
the Drinking Water Survey Report is considered "expedited" and the
entire process must be completed in a very short time frame, to be
specified by the RD.
Requests for non-expedited Drinking Water Survey Reports will also have
relatively short time frames. Therefore, we recommend that you complete
all the parts of the Drinking Water Survey Report at the same time as the
documentation establishing a new case of groundwater contamination.
Example Scenarios Demonstrating Section 26.408 Applicability
TWC, Section 26.408, applies only to cases of groundwater contamination
(as defined above) that may affect a private drinking water well and that
were documented on or after Sept. 1, 2003. For the purposes of this
section, such cases of groundwater contamination are considered new (see
Scenarios 1 and 2).
On Nov. 1, 2005, the TCEQ received a report that documented
concentrations of contaminants in groundwater that exceeded
residential health-based values for ingestion. This was the first
time the contaminant concentrations had been reported to the
TCEQ. This qualifies as a new case of groundwater contamination,
since it was initially reported to the TCEQ on or after Sept. 1,
TCEQ publication RG-428
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Texas Commission on Environmental Quality. Preparation of a Drinking Water Survey Report, text, January 2010; (texashistory.unt.edu/ark:/67531/metapth624610/m1/4/: accessed March 17, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; crediting UNT Libraries Government Documents Department.