(a)
Sampling and analysis shall be performed in accordance with analytical
techniques adopted by the EPA under the Federal act or methods approved by the
Department.
(b) An alternate
analytical technique may be employed with the written approval of the
Department and the concurrence of the Administrator. An alternate technique
will be accepted only if it is substantially equivalent to the prescribed test
in both precision and accuracy as it relates to the determination of compliance
with MCLs or MRDLs or treatment technique requirements. The use of the
alternate analytical technique may not decrease the frequency of monitoring
required by this subchapter.
(c)
For the purpose of determining compliance with the monitoring and analytical
requirements established under this subchapter and Subchapters K, L and M
(relating to lead and copper; long-term 2 enhanced surface water treatment
rule; and additional requirements for ground-water sources), the Department
will consider only samples analyzed by a laboratory accredited by the
Department, except that measurements for turbidity, fluoridation operation,
residual disinfectant concentration, temperature, pH, alkalinity,
orthophosphates, silica, calcium, conductivity, daily chlorite and magnesium
hardness may be performed by a person meeting one of the following
requirements:
(1) A person meeting the
requirements of
109.704
(relating to operator certification).
(2) A person using a standard operating
procedure as provided under authority of the Water and Wastewater Systems
Operators' Certification Act (63 P.S. §§
1001- 1015.1) and the regulations promulgated
thereunder.
(3) An environmental
laboratory meeting the requirements of Chapter 252 (relating to environmental
laboratory accreditation).
(d) A system shall have
Cryptosporidium samples analyzed by a laboratory that is
approved under the EPA's Laboratory Quality Assurance Evaluation Program for
Analysis of Cryptosporidium in Water or a laboratory that has
been accredited for Cryptosporidium analysis by an equivalent
Department laboratory accreditation program.
(e) A water supplier shall calibrate all
turbidimeters used for compliance monitoring using the procedure specified by
the manufacturer. At a minimum, calibration with an EPA-approved primary
standard shall be conducted at least every 90 days. The Department may extend
this 90-day calibration frequency if the calibration due date coincides with a
holiday or weekend, or during a water system emergency which prevents timely
calibration.
(f) For the purpose of
determining compliance with the PFAS MCLs established in §
109.202(a)(4)
(relating to State MCLs, MRDLs and treatment technique requirements), sampling
and analysis for PFAS shall be conducted as follows:
(1) Sampling and analysis shall be according
to the following approved methods and MRLs:
Contaminant |
Methods
|
MRL
(ng/L) |
(i) PFOA |
EPA 533, EPA 537.1, EPA 537
Version 1.1 |
5 |
(ii) PFOS |
EPA 533, EPA 537.1, EPA 537
Version 1.1 |
5 |
(2) Analysis shall be conducted by a
laboratory accredited by the Department.
(3) Accredited laboratories must determine
the MDL for each analyte, according to the procedure in Appendix B, Revision 2
to 40 CFR Part
136 (relating to definition and procedure for the determination
of the method detection limit) or as specified in the method.
(4) Accredited laboratories must analyze
Performance Evaluation Samples provided by a third party at least once per year
by each method for which the laboratory maintains certification. Results of
Performance Evaluation Samples must be within ±30% of the true
value.
(5) The MRL must be
contained within the range of calibration.