Okla. Admin. Code § 252:626-9-1

Current through Vol. 42, No. 4, November 1, 2024

Section 252:626-9-1 - General treatment requirements

(a) Provide treatment (flocculation, sedimentation, and filtration or other approved process) for all surface water supplies, spring water supplies, and ground water supplies, which are of questionable chemical or sanitary quality. Required treatment will be based on bacteriological, chemical, physical, and microscopic examinations, taking into consideration variations in the quality of the water. Include equipment for taste and odor control where objectionable odor or taste problems have been experienced with the supply. Provide provisions for TOC removal.

(b) Design the plant capacity of the treatment facility so that it will not be overloaded, including water required to wash the filters, on the day of maximum demand at the end of the design period. Balance the plant capacity with finished water storage.

(c) Provide a minimum of 2 units for all treatment processes. Other than clarification, design each of the unit processes to meet the designed peak maximum flow per day, with the largest unit out of service.

(d) Construct each treatment process unit with a bypass so that units can be taken out of service without disrupting operation, and with drains or pumps sized to allow dewatering in a reasonable period of time.

(e) Package plants are approvable under the variance provision. A minimum of 2 units, each that meet the design criteria, are required.

(f) Non-conventional treatment processes require a pilot study or an EPA/NSF Environmental Technology Verification Report, which demonstrates removal of all contaminants.

(g) Disinfect all new and refurbished equipment according to AWWA standard specifications, before placing into service.

(h) Safety requirements for PWS systems must meet applicable OSHA standards.

Okla. Admin. Code § 252:626-9-1

Added at 18 Ok Reg 1612, eff 6-1-01; Amended at 25 Ok Reg 2304, eff 7-11-08