Wis. Admin. Code SPS § SPS 382.38

Current through December 30, 2024

Section SPS 382.38 - Discharge points

(1) PURPOSE. The purpose of this section is to establish allowable discharge points for wastewater discharging from plumbing systems.

(2) SCOPE. The provisions of this section set forth the requirements for the discharge points for wastewater based on the use of the fixtures, appurtenances, appliances and devices discharging into the plumbing system.

(3) GENERAL REQUIREMENTS.

(a) Wastewater from plumbing systems shall be discharged as specified in Table 382.38-1.

(b) Wastewater from uses other than those listed in Table 382.38-1, shall be discharged as specified by the department on a site-specific basis.

Table 382.38 - 1

Allowable Discharge Points by Fixture or Specific Uses

Use or Fixture	Allowable Discharge Points
Use or Fixture	POWTS^a	Municipal Sanitary Sewer	Municipal Storm Sewer	Ground Surface	Combined Sanitary-Storm Sewer	Subsurface Dispersal ⁱ
1. Cross connection control device or assembly [see s. SPS 382.33 (9) (i)]	X	X		X ^{b, c,e}	X
2. Domestic wastewater	X	X			X
3. Condensate from high efficiency furnace or water heater	X	X			X
4. Drinking fountain	X	X	X	X ^b	X	X
4m. Elevator threshold drains		X		X	X
5. Elevator pit drain [see s. SPS 382.33 (9) (f)]			X	X ^b	X	X
6. Enclosed public parking levels	X	X		X ^b	X	X
7. Industrial wastewater ^h	X^f	X			X
8. Municipal well pump house floor drain and sink	X	X		X ^b	X	X
9. One- and 2-family garage floor area [see s. SPS 382.34 (4) (b)]	X	X		X ^b	X
9g. Garage catch basins or oil interceptors in public buildings and facilities. [see s. SPS 382.34 (4) (a) 1. a.]	X^{c, h, k}	X
9r. Open public parking levels			X	X ^b	X	X
10. Residential living unit air conditioner condensate	X	X ^g	X ^c	X ^b	X	X
11. Storm water, groundwater, fire sprinkler test discharge and clear water	X	X ^g	X ^c	X ^b	X	X
12. Secondary roof drain systems				X ^j
13. Swimming pool or wading pool * diatomaceous earth filter backwash	X	X			X
14. Swimming pool or wading pool * drain wastewater	X	X ^b	X ^b,c	X ^b,c	X ^b	X
15. Swimming pool or wading pool * sand filter backwash	X	X ^b	X ^b,c	X ^b,c	X ^b	X
16. Water heater temperature and pressure relief valve [see s. SPS 382.40 (5)]	X	X	X	X ^b	X	X
17. Wastewater from water treatment device	X	X	X ^c	X ^b,c	X	X
18. Whirlpool backwash drain and wastewater	X	X	X ^c	X ^b,c	X
19. Discharges not specifically listed above	Contact the department

^a Allowed when the POWTS is designed to include designated wastewater.

^b Unless prohibited by local municipality and when no nuisance is created.

^c A discharge permit may be required by the department of natural resources.

^e Allowed for exterior installation and when no sanitary sewer is in the building.

^f Refer to the department of natural resources for discharge regulations.

^g Fifty gallons per day. h The department of natural resources may require WPDES permits for industrial discharges and may allow other options.

ⁱ Subsurface dispersal must comply with s. SPS 382.365.

^j Discharge separate from the primary system and where observable.

^k Discharge is required to be received by a holding tank, see s. SPS 382.34 (4) for additional requirements for garage floor area wastewater.

Wis. Admin. Code Department of Safety and Professional Services § SPS 382.38

CR 02-002: cr. Register April 2003 No. 568, eff. 5-1-03; CR 02-129: am. Table 82.38-1 line 15 Register January 2004 No. 577, eff. 2-1-04; CR 04-035: am. Table 82.38-1 Register November 2004 No. 587, eff. 12-1-04; CR 08-055: am. Table 82.38-1 Register February 2009 No. 638, eff. 3-1-09; correction in (3) (a), (b), Table 382.38-1 made under s. 13.92(4) (b) 7, Stats., Register December 2011 No. 672.

Amended by, CR 23-006: cr. Table 382.38-1 lines 4m, 9g., 9r., footnote k Register September 2023 No. 813, eff. 10/1/2023