Current through Register No. 13, March 27, 2025
(a) A water system owner shall report the
information specified in (c) below, for all tap water samples collected
pursuant to Env-Ws 381.15 through
Env-Ws
381.21 and for all water quality parameter samples
collected pursuant to
Env-Ws
381.22 through
Env-Ws
381.27 within the first 10 days following the end of
each applicable monitoring period specified in
Env-Ws
381.15 through
Env-Ws
381.29.
(b) A water system owner shall report the
information specified in (c) below for all water quality parameter samples
collected pursuant to
Env-Ws
381.25 through
Env-Ws
381.27 within the first 10 days following the end of
the monitoring period.
(c) The
required report shall include:
(1) The results
of all tap samples for lead and copper including the location of each site and
the criteria under Env-Ws 381.15(e) through (h),
(i), or both under which the site was
selected for the system's sampling pool;
(2) Documentation for each tap water lead or
copper sample for which the system owner requests invalidation pursuant to
Env-Ws
381.32;
(3) The 90th percentile lead and copper
concentrations measured from among all lead and copper tap water samples
collected during each monitoring period calculated in accordance with
Env-Ws
381.03(c) unless the department
calculates the system's 90th percentile lead and copper levels;
(4) The results of all tap samples for pH,
and where applicable, alkalinity, calcium, conductivity, temperature, and
orthophosphate or silica collected under
Env-Ws
381.24 through
Env-Ws
381.27; and
(5) The results of all samples collected at
the entry point(s) to the distribution system for applicable water quality
parameters under Env-Ws 381.24 through
Env-Ws
381.27.
(d) A water system owner shall not be
required to report 90th percentile lead and copper concentrations to the
department if:
(1) The department calculates
the system's 90th percentile lead and copper concentrations, based on the lead
and copper sample results measured from tap water samples collected during each
monitoring period; and
(2) The
system owner provides the following information to the department:
a. The results of all tap water samples for
lead and copper, including the location of each site and the criteria under
which the site was selected for the system's sampling pool; and
b. The identification of sampling sites used
during the current monitoring period that were not sampled during previous
monitoring periods, and an explanation why sampling sites have
changed.
(e)
With the exception of initial tap sampling conducted pursuant to
Env-Ws
381.18, a system owner shall specify any site which
was not sampled during previous monitoring periods and include and explanation
of why the sampling sites has changed.
(f) The owner of a non-transient
non-community water system or a community water system meeting the criteria of
Env-Ws
381.14(k)(1) and (2) that does not
have enough taps that can provide first-draw samples shall:
(1) Provide written documentation to the
department identifying standing times and locations for enough non-first-draw
samples to make up the sampling pool under
Env-Ws
381.17 by the start of the first applicable monitoring
period unless the department has waived prior department approval of
non-first-draw sample sites selected by the system owner pursuant to
Env-Ws
381.17; or
(2) If the department has waived prior
approval of non-first draw sample sites selected by the system, identify in
writing, each site that did not meet the 6-hour minimum standing time and the
length of standing time for that particular substitute sample collected
pursuant to Env-Ws
381.17(d) and include this
information with the lead and copper tap sample results pursuant to
Env-Ws
381.33(a).
(g) No later than 60 days prior to the
addition of a new source or any change in water treatment, a water system
deemed to have optimized corrosion control under
Env-Ws
381.06(a)(4) or a water system
subject to reduced monitoring under
Env-Ws
381.21 shall send written documentation to the
department describing the change.
(h) The owner of a system using groundwater
who limits water quality parameter monitoring to a subset of entry points as
specified in Env-Ws 381.25 shall provide, by
the start of such monitoring, written correspondence to the department that
identifies the selected entry points and includes information sufficient to
demonstrate that the sites are representative of water quality treatment and
conditions throughout the system.
(i) Source water reporting requirements shall
be as follows:
(1) A water system owner shall
report the sampling results for all source water samples collected in
accordance with Env-Ws 381.28 through
Env-Ws
381.30 within the first 10 days following the end of
each source water monitoring period, annually, per compliance period, specified
in Env-Ws
381.28 through
Env-Ws
381.30; and
(2) With the exception of the first round of
source water sampling conducted pursuant to
Env-Ws
381.28(h), the system owner shall
specify any site which was not sampled during previous monitoring periods, and
include an explanation of why the sampling point has changed.
(j) As required in
Env-Ws
381.05 through
Env-Ws
381.08, a system owner shall report the following
information to the department by the dates specified in
Env-Ws
381.05:
(1) For
systems demonstrating that they have already optimized corrosion control,
information required in
Env-Ws
381.06(a)(1), (a) (2), (a)(4) or
(b);
(2) For systems required to
optimize corrosion control, their recommendation regarding optimal corrosion
control treatment under
Env-Ws
381.09(b);
(3) For systems required to evaluate the
effectiveness of corrosion control treatments under
Env-Ws
381.09(d), the information required
by that paragraph; and
(4) For
systems required to install optimal corrosion control specified by the
department under Env-Ws 381.10(a) through
(c), a letter certifying that the system has
completed installing that treatment.
(k) A system owner shall report source water
treatment by the applicable dates in
Env-Ws
381.11 and shall provide the following information to
the department:
(1) If required under
Env-Ws
381.12(a), the system's
recommendation regarding source water treatment; and
(2) For systems required to install source
water treatment under
Env-Ws
381.12(b), a letter certifying that
the system has completed installing the treatment specified by the department
within 24 months after the department specified the treatment.
(l) A system owner shall report to
the department the following information concerning lead service line
replacement as specified in
Env-Ws
381.12:
(1) Within
12 months after a system exceeds the lead action level in sampling referred to
in Env-Ws
381.13(a), the system shall:
a. Demonstrate in writing to the department
that it has conducted a materials evaluation, including the evaluation in
Env-Ws
381.15(a) through
Env-Ws
381.15(j) to identify the initial
number of lead service lines in its distribution system; and
b. Provide the department with the system's
schedule for replacing annually at least 7% of the initial number of lead
service lines in its distribution system;
(2) Within 12 months after a system exceeds
the lead action level in sampling referred to in
Env-Ws
381.13(a), and every 12 months
thereafter, the system shall demonstrate to the department in writing that the
system has either:
a. Replaced in the
previous 12 months at least 7% of the initial lead services line or a greater
number of lines specified by the department under
Env-Ws
381.13 in its distribution system; or
b. Conducted sampling which demonstrates that
the lead concentration in all first flush samples from an individual line(s),
taken pursuant to Env-Ws
381.16(g), is less than or equal to
0.015 mg/L;
c. The total number of
lines replaced which meet the criteria in
Env-Ws
381.13(b) shall be equal to
1. At least 7% of the initial number of lead
lines identified under (l)(1) above; or
2. The percentage specified by the department
under Env-Ws 381.13;
(3) The annual report
submitted to the department under (2) above shall contain the following
information:
a. The number of lead service
lines scheduled to be replaced during the previous year of the system's
replacement schedule;
b. The number
and location of each lead service line replaced during the previous year of the
system's replacement schedule; and
c. If measured, the water lead concentration
and location of each lead service line sampled, the sampling method, and the
date of sampling.
(m) Any system which collects lead service
line samples following partial lead service line replacement required by
Env-Ws
381.13 shall:
(1)
Report the results to the department within the first 10 days of the month
following the month in which the system receives the laboratory results;
and
(2) Report any additional
information as specified by the department, in a time and manner prescribed by
the department, to verify that all partial lead service line replacement
activities have taken place.
(n) A water system owner subject to the lead
education requirements of
Env-Ws
381.14 shall, within 10 days after the end of each
period in which the system is required to perform lead education, submit to the
department:
(1) Documentation that the system
owner has delivered lead education materials that meet the requirements of
Env-Ws
381.14; and
(2) A list of all newspapers, radio stations,
television stations, facilities, and organizations to which the system owner
delivered lead education materials during the period in which the system was
required to perform lead education tasks.
(o) A water system owner that has previously
submitted to the department the information required in (n)(2) above, shall not
be required to resubmit the information, as long as there have been no changes
in the distribution list and the system owner certifies to the department that
the lead education materials were distributed to the same list submitted
previously.
(p) Any system owner
collecting sampling data in addition to that required by this part shall report
the results to the departmentwithin the first 10 days following the end of the
applicable monitoring period during which the samples were collected under
Env-Ws
381.18 through
Env-Ws
381.30.
(See Revision Note at chapter heading for Env-Ws 300)
#6521, eff 6-4-97, ss by #7734, eff 8-2-02; amd by #8351, eff 5-14-05; amd by
#9598, eff 11-21-09
