Current through Register Vol. 55, No. 13, March 29, 2025
(a)
Reporting. Groundwater
systems shall comply with the following requirements and otherwise comply with
§
109.701 (relating to reporting and
recordkeeping):
(1) A groundwater system
conducting compliance monitoring under §
109.1305 (relating to compliance
monitoring):
(i) Shall report to the
Department, for each entry point or other Department-approved monitoring
location:
(A) The date, time and lowest value
each day the residual disinfectant concentration remains equal to or greater
than the Department-required minimum value established under §
109.1306 (relating to information
describing 4-log treatment and compliance monitoring).
(B) The initial date, time and value for each
occurrence that the residual disinfectant concentration is less than the
Department-required minimum, and the subsequent date, time and value that the
residual disinfectant concentration is equal to or greater than the required
minimum.
(C) Each date the entry
point is not in operation.
(ii) That experiences a breakdown in
treatment shall notify the Department within 1 hour after the water system
learns of the violation or the situation and provide public notice in
accordance with §
109.408 (relating to Tier 1 public
notice-categories, timing and delivery of notice). A breakdown in treatment
occurs whenever the system fails to meet, for greater than 4 hours of
operation, any Department-specified requirements relating to:
(A) Minimum residual disinfectant
concentration.
(B) Alternative
treatment operating criteria, if operation in accordance with the criteria or
requirements is not restored within 4 hours.
(2) After completing any corrective action
under §
109.1302(c)
(relating to treatment technique requirements), a groundwater system shall
notify the Department within 30 days of completion of the corrective
action.
(b)
Recordkeeping. Groundwater systems shall comply with §
109.701 and maintain the following
information in its records:
(1) Corrective
actions. Documentation shall be kept for at least 10 years.
(2) Notice to the public as required under
Subchapter D (relating to public notification). Documentation shall be kept for
at least 3 years.
(3) Records of
invalidation of
E. coli- positive groundwater source samples
under §§
109.1303(g) and
109.1304(b)
(relating to triggered monitoring requirements for groundwater sources; and
assessment source water monitoring). Documentation shall be kept for at least 5
years.
(4)
Records of
notification to other public water systems. For a public water system
obtaining groundwater from another public water system, documentation of
notification to the supplier of total-coliform positive samples that are not
invalidated under §
109.301(3)(iii)
(relating to general monitoring requirements). Documentation shall be kept for
at least 5 years.
(5)
Compliance monitoring. For systems, including suppliers
providing water to another public water system, that are required to perform
compliance monitoring under §
109.1305:
(i) Documentation of the records of the
Department-specified minimum disinfectant residual shall be kept for at least
10 years.
(ii) Documentation of the
records of the lowest daily residual disinfectant concentration and records of
the date and duration of any failure to maintain the Department-prescribed
minimum residual disinfectant concentration for more than 4 hours, shall be
kept for at least 5 years.
(iii)
Documentation of the records of the Department-specified compliance
requirements specified by the Department for Department-approved alternative
treatment and records of the date and duration of any failure to meet
alternative treatment operating requirements for more than 4 hours, shall be
kept for at least 5 years.
The provisions of this § 109.1307 amended under section
4(a) of the Pennsylvania Safe Drinking Water Act (35 P.S. §
721.4(a)); and section
1920-A(b) of The Administrative Code of 1929 (71 P.S. §
510-20(b)).
This section cited in 25 Pa. Code §
109.408 (relating to Tier 1 public
notice-categories, timing and delivery of notice); and 25 Pa. Code §
109.701 (relating to reporting and
recordkeeping).