Okla. Admin. Code § 252:631-3-11

Current through Vol. 41, No. 19, June 17, 2024

Section 252:631-3-11 - Operating records & reports

(a)Immediate notification to DEQ. Each system must report to the DEQ by the end of the next business day if any of the following occur:

(1) Waterborne disease outbreak;

(2) Finished water turbidity exceeds 1 NTU;

(3) Chlorine residual falls below 0.2 mg/l at the POE and whether the residual was restored to at least 0.2 mg/l within 4 hours;

(4) Nitrate level exceeds 10 mg/l;

(5) Verification of a positive Fecal Coliform or E. Coli sample; and

(6) Exceedance of the Chlorine Dioxide MRDL.

(b)Records. All systems must keep a daily record of the results of required process control tests and list the results of microbiological checks on the dates sampled. The records of all laboratory checks and control tests must indicate when, where, and by whom the tests were made. The PWS system must complete and submit the original of the DEQ-approved monthly operational report form to the DEQ with a copy to the appropriate local DEQ representative no later than the tenth (10th) day of the following month. Purchase water systems that are required to maintain a disinfection residual must maintain a monthly operational report for DEQ inspection.

(c)Water treatment systems.

(1) Systems that provide water treatment must keep:

(A) a daily record of the operations performed in the treatment process;

(B) observations, cost and occurrences related to the operation of the plant; and

(C) the control tests and laboratory checks previously described in 252:631-3-10.

(2) In addition, water treatment plants designed for turbidity and microbial removal must keep:

(A) the number of filtered water turbidity samples taken during the month;

(B) the number and percentage of turbidity samples that are less than or equal to the standards;

(C) the date and value of any turbidity measurements that exceed 1 and 5 NTU. Where continuous monitoring is used, measurements must be recorded every 4 hours during plant operation; and

(D) the results of direct integrity testing and indirect integrity monitoring for membrane filtration as required in 252:631-3-10(1)(D).

(d)Groundwater systems. Operators of groundwater systems must keep a daily record of all well operations, in addition to the process control tests and laboratory checks required for ground water supplies.

(e)Record keeping. All records must be available for inspection by the DEQ and maintained for at least 10 years unless otherwise specified.

Okla. Admin. Code § 252:631-3-11

Added at 17 Ok Reg 1987, eff 6-12-00; Amended at 18 Ok Reg 1999, eff 6-11-01; Amended at 20 Ok Reg 61, eff 10-31-02 (emergency); Amended at 20 Ok Reg 1153, eff 6-1-03; Amended at 25 Ok Reg 2305, eff 7-11-08; Added at 29 Ok Reg 1051, eff 7-1-12

Amended by Oklahoma Register, Volume 31, Issue 24, September 2, 2014, eff. 9/12/2014

Amended by Oklahoma Register, Volume 32, Issue 23, August 17, 2015, eff. 9/15/2015