Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-42 - Permits to Install and Plan Approvals for Water Pollution Control › Section 3745-42-08 - Isolation distance requirements

Current through all regulations
			 passed and filed through July 1, 2024
(A) Isolation distances. Except as provided
			 in paragraphs (B) to (E) of this rule, the minimum isolation distances in table
			 A-1 of this rule shall be maintained.
[Comment:  In the case of any reference to any building, the
				measurement shall be taken from the outside wall of the building. In the case
				of any reference to a treatment works or a component of the treatment works or
				a pump station, the measurement shall be taken from the closest point on the
				perimeter of the treatment works, the component of the treatment works, or the
				pump station. In the case of any reference to an earthen lagoon or storage
				facility, the measurement shall be taken from the outer bank or the toe of the
				earthen impoundment.]
Table A-1: Isolation distance requirements.
Component of disposal system
Minimum isolation distance required from an occupied
						  building
Minimum isolation distance required from surface waters
						  of the state
Earthen impoundment that contains sewage or treated
						  sewage
Three hundred feet
Three hundred feet
Earthen impoundment that contains industrial waste,
						  other than industrial waste generated from the recovery of any natural
						  resource, such as a quarry mining operation
Three hundred feet
Three hundred feet
Sewage sludge drying bed
Three hundred feet
Three hundred feet
Covered sand filter
One hundred fifty feet
Three hundred feet
Housing or building enclosure for extended aeration
						  treatment works
One hundred fifty feet
One hundred fifty feet
Pump station
Fifty feet
Thirty-five feet
Any other component of a treatment works, not including
						  (1) a disposal field, (2) a land application area or (3) a wet weather
						  management facility for treating combined sewer overflows or sanitary sewer
						  overflows
Two hundred feet
Three hundred feet
(B)
			 After considering either the potential impacts to neighboring buildings or
			 prevailing wind directions, the director may increase an isolation distance set
			 forth in table A-1 of this rule or require mitigative measures such as
			 additional freeboard, landscape mounds, fencing, trees or other means to reduce
			 the impacts in the following situations:
(1) Within a permit,
			 including but not limited to a general permit to install or a storm water
			 permit. Where a greater isolation distance requirement exists as a condition of
			 a permit, the greater isolation distance requirement shall prevail.
(2) To protect the following from potential
			 impacts from a wastewater treatment works with a design flow of more than one
			 hundred thousand gallons per day or from any non-aerated treatment lagoon:
(a) A high density development.
[Comment: A high density development includes a residential
				development of homes or condominiums, a commercial development, such as a
				shopping mall, or a business park development.]
(b) A day care facility.
(c) A hospital.
(d) Waters of the state.
[Comment: Potential impacts to
				neighboring buildings could include odors or the probability that either an
				overflow or a breach could inundate neighboring buildings, causing harm to
				life, health or property. Applicants proposing to construct above ground
				impoundments should also contact the Ohio department of natural resources
				division of dam safety. The web page is:
				http://water.ohiodnr.gov/safety/dam-safety. ]