Utah Admin. Code R392-304-7 - Artificial Swimming Lagoon Source Water Quality

(1) If the source water for the DSA of an artificial swimming lagoon is not from a public drinking water system as described in Rule R309-100 Administration: Drinking Water Program, the operator shall:

(a) collect a sample of the source water;

(b) submit the collected sample for analysis to a laboratory that is certified under Rule R444-14, Certification of Environmental Laboratories; and

(c) have laboratory analysis performed initially and for each five-year period thereafter to determine the levels of contaminants listed in Table 1.

(2) If the source water analysis report described in Subsection R392-304-7(1) indicates that a contaminant level is greater than or equal to any of the standards in Table 1, the operator shall:

(a) discontinue the use of the source water; or

(b) implement an ongoing treatment process to provide source water that complies with Table 1.

TABLE 1 Source Water Contaminants and MCLs
Contaminant	Maximum Contaminant Level (MCL)
Antimony	0.006 mg/L
Arsenic	0.010 mg/L
Barium	2 mg/L
Beryllium	0.004 mg/L
Cadmium	0.005 mg/L
Chromium	0.1 mg/L
Copper	1.3 mg/L
Cyanide, as free cyanide	0.2 mg/L
Fluoride	4.0 mg/L
Lead	0.015 mg/L
Mercury	0.002 mg/L
Nitrate	10 mg/L
Nitrite	1 mg/L
Selenium	0.05 mg/L
Thallium	0.002 mg/L

(3) The operator shall maintain a closed-loop system for water recirculation.

(4) If the water source for the DSA of an artificial swimming lagoon is connected to a public or private potable water source, the operator shall ensure that:

(a) the water source system is protected from a backflow or back-siphonage event with a backflow preventer, such as an air gap, a mechanical backflow prevention device, or another means or method in accordance with Plumbing Code; and

(b) the backflow preventer does not connect to the discharge side of a recirculation pump of an artificial swimming lagoon.

Notes

Utah Admin. Code R392-304-7

Adopted by Utah State Bulletin Number 2024-18, effective 9/8/2024