Wis. Admin. Code Department of Natural Resources NR 852.05

Current through September 30, 2024

Section NR 852.05 - Required elements - Tier 2 and Tier 3

(1) Persons identified in Tier 2 and Tier 3 shall complete the elements specified in s. NR 852.04 and the elements specified under either sub. (2) or (3).

(2) A person identified in Tier 2 or Tier 3 shall implement all CEMs identified in Table 2 for the applicable water use sector that do not require retrofitting, except those CEMs that are not cost-effective or environmentally sound and economically feasible, as determined by an analysis conducted by the applicant pursuant to s. NR 852.09 or 852.10, and approved by the department.

(3) A person identified in Tier 2 or Tier 3 shall implement CEMs selected from Table 2, the Optional CEM list in s. NR 852.08(2), or other CEMs as proposed by the applicant and approved by the department, which can be shown to reduce water use or increase water reuse or efficiency by 10 percent, in accordance with all of the following:

(a) The percent reduction in water use or increase in water reuse or efficiency in this subsection shall be based upon a comparison of the water use or water use intensity from the most recent complete year. Water use and water use intensity shall be adjusted to account for unique facility, economic, or weather variability.

(b) The calculation of the 10 percent reduction in water use or increase in water reuse or efficiency shall be in addition to any reduction in water use or increase in water reuse or efficiency achieved through implementation of the CEMs set forth in s. NR 852.04(2) and shall not be included in the calculated percent reduction.

(4) For persons other than persons applying for a new or increased diversion, the person shall implement the CEMs identified under sub. (1) within 2 years of the date of the department approval under s. NR 852.11.

(5) For persons applying for a new or increased diversion, the person shall implement the CEMs identified under sub. (1) prior to submitting an application.

Table 2

Required Conservation and Efficiency Measures

CEM #	Description	Required Elements
Public Water Supply Water Use Sector (PWS)
PWS-R1	Distribution System Pressure Management	Analyze distribution system pressure management to identify opportunities to reduce water use and minimize plumbing fixture leaks.
PWS-R2	Residential Demand Management Program	Establish and publicize a program to complete residential customer water use audits and leak surveys upon customer request based on high or aberrant water use. In developing the program, a waiver of liability and written permission from the customer may be needed.
PWS-R3	Commercial and Industrial Demand Management Program	Establish and publicize a program to complete commercial and industrial customer water use audits and leak surveys upon customer request based on high or aberrant water use. In developing the program, a waiver of liability and written permission from the customer may be needed.
PWS-R4	Water Reuse	Conduct a technical assessment to evaluate the feasibility of water reuse in the operation of the facility. Implement water reuse projects identified by the assessment and allowed under current state law.
Commercial and Institutional Water Use Sector (CI)
CI-R1	Cleaning and Dust Control	Implement procedures to reduce or eliminate water use for cleaning or dust control. For example, use microfiber or sponge mops in place of cotton mops.
CI-R2	Cooling Process Sensors	Install sensors in cooling processes that use water to allow the cooling process to operate only when needed.
CI-R3	Towel and Bed Linen Reuse	Encourage lodging guests to reuse towels and bed linens in order to reduce laundry water use, if applicable.
CI-R4	Water Reuse	Conduct a technical assessment to evaluate the feasibility of water reuse. Implement water reuse projects identified by the assessment and allowed under current state law.
Irrigation Water Use Sector (IR)
IR-R1	Irrigation scheduling	Use the most current version of Wisconsin Irrigation Scheduling Program (WISP) or comparable program to determine the timing and quantity of irrigation. The scheduling program shall include rainfall, irrigation, and soil moisture monitoring in the field. Note: The Wisconsin Irrigation Scheduling Program (WISP) is a University of Wisconsin - Extension research-based program that uses a water budget approach to irrigation scheduling.
IR-R2	Crop/Turf Maintenance	1. Crop Residue Management. As appropriate, implement residue management and conservation tillage to enhance the ability of the soil to retain moisture. 2. Turf Maintenance. Implement recommended practices for proper turf maintenance. Examples of practices include integrated pest management, frequency of mower blade sharpening, and height of mower cut.
IR-R3	Target Areas	Eliminate or minimize non-target irrigation including drift caused by wind and irrigation of impervious surfaces and non-targeted areas to the extent practicable.
IR-R4	Water Reuse	Conduct a technical assessment to evaluate the feasibility of water reuse. Implement water reuse projects identified by the assessment and allowed under current state law.
Livestock Water Use Sector (LS)
LS-R1	Cleaning and Dust Control	Pre-clean animal living and production areas prior to washing with water. Reduce or eliminate the use of "new" water for cleaning and dust control.
LS-R2	Determine Water Needs	Conduct a technical assessment of the requirements for fresh water inputs for healthy livestock production. Appropriately size, control, and distribute the watering system based upon the requirements.
LS-R3	Animal Cooling	Cycle a water-based animal cooling system based on temperature, if applicable.
LS-R4	Water Reuse	Conduct a technical assessment to evaluate the feasibility of water reuse. Implement water reuse projects identified by the assessment and allowed under current state law.
Industrial Water Use Sector (IN)
IN-R1	Cooling Towers	Conduct an evaluation of the existing cooling tower system operation. The evaluation shall review all phases of cooling tower operation including the amount of water used for make up and release as blowdown, water quality characteristics, treatment application and chemicals used, metering, use of automated monitoring and controls, repair and maintenance schedules and procedures. A complete evaluation will consider the installation of sub-meters to the cooling tower makeup water line. Installation of any new cooling towers shall incorporate the measures identified in IN-R1.
IN-R2	Sub-measuring	Implement sub-measuring to account for water usage in specific processes to determine water use and loss in a process and to identify additional water efficiency goals.
IN-R3	Steam Systems	Implement steam system conservation by assessing the system operation and maintenance. Repair system leaks, maximize condensate recovery, and consider installation of continuous blowdown heat recovery.
IN-R4	Water Reuse	Conduct a technical assessment to evaluate the feasibility of water reuse. Implement water reuse projects identified by the assessment and allowed under current state law.
Power Production Water Use Sector (PP)
PP-R1	Cooling Towers	Conduct an evaluation of the existing cooling tower system operation. The evaluation shall review all phases of cooling tower operation including the amount of water used for make up and release as blowdown, water quality characteristics, treatment application and chemicals used, metering, use of automated monitoring and controls, repair and maintenance schedules and procedures. A complete evaluation will consider the installation of sub-meters to the cooling tower makeup water line. Installation of any new cooling towers shall incorporate the measures identified in PP-R1.
PP-R2	Sub-measuring	Implement sub-measuring to account for water usage in specific processes to determine water use and loss in a process and to identify additional water efficiency goals.
PP-R3	Steam Systems	Implement steam system conservation by assessing the system operation and maintenance. Repair system leaks, maximize condensate recovery, and install continuous blowdown heat recovery.
PP-R4	Water Reuse	Conduct a technical assessment to evaluate the feasibility of water reuse. Implement water reuse projects identified by the assessment and allowed under current state law.
Other Water Use Sector (OR)
OR-R1	Water Reuse	Conduct a technical assessment to evaluate the feasibility of water reuse. Implement water reuse projects identified by the assessment and allowed under current state law.

Wis. Admin. Code Department of Natural Resources NR 852.05

CR 10-060: cr. Register December 2010 No. 660, eff. 1-1-11; correction in (3) (intro.) made under s. 13.92(4) (b) 7, Stats., Register December 2010 No. 660.