APRIL 22, 2026 - ADMINISTRATIVE COMPLIANCE ORDER
Section 1433(a)(1)(A) of the SDWA, 42 U.S.C. ? 300i-2(a)(1)(A), requires a CWS serving more than 3,300 persons to conduct a Risk and Resilience Assessment (?RRA?) of its system. The RRA shall include an assessment of:
a. the risk to the system from malevolent acts and natural hazards;
b. the resilience of the pipes and constructed conveyances, physical barriers, source water, water collection and intake, pretreatment, treatment, storage and distribution facilities, electronic, computer, or other automated systems (including the security of such systems) which are utilized by the system;
c. the monitoring practices of the system;
d. the financial infrastructure of the system;
e. the use, storage, or handling of various chemicals by the system; and
f. the operation and maintenance of the system.
A CWS serving a population of more than 100,000 people was required to certify to the EPA that it had completed and/or revised the RRA prior to March 31, 2020 and at least once every five years after the initial applicable deadline. See Section 1433(a)(3) of the SDWA; 42 U.S.C. ? 300i-2(a)(3).
Section 1433(b) of the SDWA, 42 U.S.C. ? 300i-2(b), requires a CWS serving more than 3,300 persons, to prepare or revise, where necessary, an emergency response plan (?ERP?) that incorporates the findings of the RRA no later than six months after certifying completion of its RRA. The ERP shall include:
a. strategies and resources to