Fla. Admin. Code R. 62-660.803
(1) Applicability.
(b) Any residential car wash, as defined below, discharging 4000 gallons or less of wastewater per week is exempt from the requirement to obtain this general permit or a Department industrial wastewater permit if all of the following requirements are met:
1. Wastewater is not discharged directly to surface waters or to ground waters through wells or sinkholes that allow direct contact with Class G-I or Class G-II ground waters as defined in Chapter 62-520, F.A.C.,
2. Best management practices (BMPs) are implemented to minimize run-off from, or run-on to, the site,
3. The facility maintains a 100 foot setback from public drinking water wells and a 75 foot setback from private drinking water wells,
4. The car wash discharges into:
a. A percolation system that incorporates a grassed swale or infiltration area capable of treating both the wastewater and the first half-inch of runoff from the impervious surface set aside for the car wash. Grit, oil or grease shall be prevented from leaving the retention area, and any trapped solids and oils shall be disposed of in accordance with subsection 62-660.803(4), F.A.C., or
b. An existing, permitted, stormwater treatment system, if the discharge will not violate any condition of the stormwater permit,
5. The wash equipment incorporates a method to determine wash water flows such as a meter or a non-reset type counter or similar device which measures the number of cycles and a control timer or similar device which limits the time of each cycle,
6. A sign is posted which contains, at a minimum, the following language: “NO ENGINE OR OUTBOARD MOTOR CLEANING OR REPAIRING, NO OIL CHANGING OR DUMPING, NO COOLANT FLUSHING”,
7. The owner of the facility notifies the Department in writing within 30 days of completion of construction that a car wash facility has been constructed pursuant to this exemption.
(2) General Requirements.
(3) Definitions. Terms used in this rule shall have the meaning specified below.
(4) Prohibitions.
(5) Specific Requirements.
(6) Design Requirements. The car wash recycle system shall be designed and operated to prevent discharge to ground water and surface water except as described in paragraph (g), below.
(g) Partial Recycle Systems. A tunnel car wash or other car wash that separates wash and rinse water and recycles wash water may dispose of excess rinse water to an absorption field system, provided that the following conditions are met:
1. Only rinse water shall be disposed of in the absorption field system. Wash water is prohibited from disposal.
2. The discharge of rinse water shall not exceed 2000 gallons per day to the absorption field.
3. The rinse water shall be treated in a settling tank having a minimum detention time of 90 minutes based on the maximum discharge rate.
4. The absorption field shall be designed, sized, and installed in accordance with the technical standards and criteria for absorption fields contained in Chapter 64E-6, F.A.C.
Rulemaking Authority 403.051, 403.814 FS. Law Implemented 120.55, 403.051, 403.061, 403.087, 403.088, 403.814 FS. History–New 1-2-91, Amended 4-22-93, 5-19-94, Formerly 17-660.803, Amended 12-24-96.