Okla. Admin. Code § 252:624-7-1

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

Section 252:624-7-1 - General operation and maintenance provisions

(a)Owner responsibilities. The owner of a minor public water supply system shall be responsible for:

(1) operating and maintaining the minor public water supply system in accordance with the terms of the authorization or permit;

(2) operating and maintaining the minor public water supply system in compliance with this Chapter;

(3) repairing or replacing any broken or malfunctioning components of the minor public water supply system as soon as practicable;

(4) immediately notifying all consumers of the need to heat the water to a full rolling boil for one minute before consumption or to discontinue the use of the water when repeat water samples test positive for total or fecal coliform;

(5) immediately submitting to DEQ copies of any laboratory analysis results that exceed any drinking water standard(s); and

(6) immediately notifying all customers of the result of any analysis that exceeds drinking water standards and any precautionary measures necessary to protect the public health.

(b)Minimum pressure. The minor public water supply system shall be operated to maintain a minimum pressure of twenty-five (25) psi throughout the distribution system under normal operating conditions including peak demand periods.

(c)Sampling. The water from minor public water supply systems shall be sampled and analyzed by a laboratory once a year for coliform bacteria. If the sample results come back:

(1) positive for coliform bacteria, then the disinfection procedure outlined in OAC 252:624-5-1 shall be repeated and a follow-up sample shall be collected for laboratory analysis.

(A) If the follow-up bacteriological analysis comes back negative, then the bacteriological sampling shall be done on a monthly basis until a sample comes back coliform negative without disinfection.

(B) When a coliform negative sample cannot be obtained after three disinfection attempts, then full-time disinfection will be required.

(2) positive for fecal coliform, then a retake must be submitted for analysis at a laboratory. If the results of the retake sample come back positive for fecal coliform, then full-time disinfection will be mandatory.

(3) negative for coliform bacteria, then the minor public water supply system may continue or begin to serve water to the public.

(d)Chlorine monitoring. When disinfection is mandatory, a free chlorine residual of at least 0.2 ppm shall be maintained at the farthest point in the distribution system. The free chlorine residual at the farthest point in the distribution system shall be monitored daily. The free chlorine residual shall be analyzed in accordance with the latest edition of "Standard Methods for the Examination of Water and Wastewater."

(e)VOCs. Minor public water supply system wells located within three hundred feet (300') of petroleum underground storage tanks shall have water samples analyzed for VOCs by a laboratory once a year. A water source containing VOCs higher than the applicable drinking water standards shall not be used as a water source for minor public water supply system.

(f)Additional testing. Systems that treat for the removal of regulated contaminants shall have samples analyzed for those contaminants by a laboratory at a frequency specified by DEQ.

(g)Records. Records of all control tests and the results of all laboratory analyses shall be maintained at the facility for a period of ten (10) years.

(h)Security. All security measures, including locks on well houses and wellheads, shall be maintained to prevent vandalism, trespass, and sabotage.

(i)Seasonal Systems. Systems, which operate on an intermittent or seasonal basis, shall submit bacteriological samples on two (2) consecutive days prior to placing the system into operation. The system can be placed into operation only after the samples are shown to be safe.

Okla. Admin. Code § 252:624-7-1

Added at 25 Ok Reg 2294, eff 7-11-08

Amended by Oklahoma Register, Volume 34, Issue 24, September 1, 2017, eff. 9/15/2017