Iowa Admin. Code r. 567-62.5 - Effluent reuse

(1) Manner of reuse. Treated final effluent may be reused in a manner noted in this rule or as specified in an NPDES permit.

(2) Reuse for golf course irrigation. Treated final effluent may be reused for golf course irrigation if one of the conditions described in 62.5(2)"a" and all of the conditions in 62.5(2)"b" are met.

a. The treated final effluent must meet one of the following conditions:

(1) A minimum total residual chlorine (TRC) level of 0.5 mg/l must be maintained at a minimum of 15 minutes' contact time of chlorine to wastewater prior to the irrigation of the golf course with treatment plant effluent; or

(2) Disinfected effluent shall be held in a retention pond with a detention time of at least 20 days prior to reuse as irrigation on a golf course. For this purpose, effluent may be disinfected using any common treatment technology, and either an existing pond or a pond constructed specifically for effluent retention may be used.

b. A golf course utilizing treated final effluent shall take all of the following actions:

(1) Clearly state on all scorecards that treated final effluent is used for golf course irrigation and oral contact with golf balls and tees should be avoided;

(2) Post signs that warn against consumption of water at all water hazards;

(3) Color code, label, or tag all piping and sprinklers associated with the distribution or transmission of the treated final effluent to clearly warn against the consumptive use of the contents; and

(4) Restrict public access to any area of the golf course where spraying is being conducted.

Notes

Iowa Admin. Code r. 567-62.5

Amended by IAB April 13, 2016/Volume XXXVIII, Number 21, effective 5/18/2016 Adopted by IAB May 14, 2025/Volume XLVII, Number 23, effective 6/18/2025