Okla. Stat. tit. 27A, § 27A-2-6-403
This is the official text of Okla. Stat. tit. 27A, § 27A-2-6-403, part of Oklahoma’s Stat. tit. 27A, — part of the compiled statutory law of Oklahoma, published by the state as "Stat. tit. 27A,." Browse the sections below, each linked to its official government source.
Not legal advice. This page reproduces the official text of a government statute for reference only. Laws change, and how a statute applies depends on your specific facts. For advice about your situation, consult a licensed attorney in your state.
Requirements of construction or operation of sewage
Official statutory text
treatment systems - Planning residential development sewage
treatment - Plats.
A. No small public sewage treatment system or individual sewage
treatment system shall be constructed or operated unless such
system, when constructed, complies with requirements prescribed by
the Environmental Quality Board as determined by an inspection
performed by the Department of Environmental Quality or a person
authorized by the Department.
1. It shall be the duty of the person contracting with an
installer who is modifying or installing an on-site sewage treatment
system for a residence or business to certify the number of bedrooms
in the residence or the water usage of the business that will be
served by the sewage treatment system so that the system can be
properly sized.
2. Upon reinspection of an approved system, performed at the
request of the lot owner, the Department or a person authorized by
the Department shall not require that the system be uncovered unless
there is evidence that the system has not functioned properly.
Oklahoma Statutes - Title 27A. Environment and Natural Resources Page 154
B. Any person, corporation or other legal entity which creates
or intends to create a residential development outside the corporate
limits of a city or town shall file a plat describing the methods of
sewage treatment for such residential development with the
Department. Approval of the plat shall be obtained prior to
recording the plat, offering a lot or lots for sale or beginning
construction within such residential development.
1. The plat shall include:
a. a description of the methods for providing water
supply and sewage treatment. If a public water supply
or public sewage is to be used, then verification of
the preliminary approval from the Department shall be
submitted along with the plat,
b. the actual lot size of each lot in square feet, acres
or fractions of acres, and
c. the location of any public water supply source,
including wells and surface water supplies, within
three hundred (300) feet of the residential
development.
2. Upon approval by the Department, the plat of the residential
development shall be imprinted with the stamp of the Department
bearing the word "approved", restrictions, if any, signature of the
Department or the Department's local representative and the date.
Approval of the plat shall be made effective thirty (30) days after
the plat is filed with the Department unless specifically rejected
prior to the expiration of the said thirty-day period of time.
3. The office of county clerk shall not record a plat
containing any lot of less than two and one-half (2 1/2) acres
situated outside the corporate limits of a municipality unless said
instrument bears the "approved" stamp of the Department. The
Department shall have no authority to disapprove and shall approve
plats of tracts that are being developed for individual residence in
which no single tract is less than two and one-half (2 1/2) acres,
provided that none of the lots are within three hundred (300) feet
of a public water supply source.
C. Persons creating or intending to create a residential
development, after receiving the stamp of approval from the
Department or the Department's local representative, shall file such
plat in the land records of the county where the residential
development is to be situated.
D. For purposes of this section, “subdivision of land for
purposes of a residential development” shall have the same meaning
as “subdivision” as defined in Section 863.9 of Title 19 of the
Oklahoma Statutes.
E. Any person who knowingly creates a residential development
without receiving the approval of the Department or the Department's
local representative of a plat or without filing of record a plat in
Oklahoma Statutes - Title 27A. Environment and Natural Resources Page 155
violation of this section, or who installs a private sewage
fined in Section 863.9 of Title 19 of the
Oklahoma Statutes.
E. Any person who knowingly creates a residential development
without receiving the approval of the Department or the Department's
local representative of a plat or without filing of record a plat in
Oklahoma Statutes - Title 27A. Environment and Natural Resources Page 155
violation of this section, or who installs a private sewage
treatment system on a lot for which disapproval of a private sewage
treatment system has previously been filed of record shall be deemed
guilty of a misdemeanor and upon conviction shall be punished by a
fine of not less than Five Hundred Dollars ($500.00) nor more than
Five Thousand Dollars ($5,000.00) for each violation.
F. The Department is authorized to use monies other than fees
or appropriated funds as such monies may be available to the
Department to offer financial assistance to indigent citizens of the
State of Oklahoma to reduce the incidence of surfacing sewage in the
State of Oklahoma.
treatment - Plats.
A. No small public sewage treatment system or individual sewage
treatment system shall be constructed or operated unless such
system, when constructed, complies with requirements prescribed by
the Environmental Quality Board as determined by an inspection
performed by the Department of Environmental Quality or a person
authorized by the Department.
1. It shall be the duty of the person contracting with an
installer who is modifying or installing an on-site sewage treatment
system for a residence or business to certify the number of bedrooms
in the residence or the water usage of the business that will be
served by the sewage treatment system so that the system can be
properly sized.
2. Upon reinspection of an approved system, performed at the
request of the lot owner, the Department or a person authorized by
the Department shall not require that the system be uncovered unless
there is evidence that the system has not functioned properly.
Oklahoma Statutes - Title 27A. Environment and Natural Resources Page 154
B. Any person, corporation or other legal entity which creates
or intends to create a residential development outside the corporate
limits of a city or town shall file a plat describing the methods of
sewage treatment for such residential development with the
Department. Approval of the plat shall be obtained prior to
recording the plat, offering a lot or lots for sale or beginning
construction within such residential development.
1. The plat shall include:
a. a description of the methods for providing water
supply and sewage treatment. If a public water supply
or public sewage is to be used, then verification of
the preliminary approval from the Department shall be
submitted along with the plat,
b. the actual lot size of each lot in square feet, acres
or fractions of acres, and
c. the location of any public water supply source,
including wells and surface water supplies, within
three hundred (300) feet of the residential
development.
2. Upon approval by the Department, the plat of the residential
development shall be imprinted with the stamp of the Department
bearing the word "approved", restrictions, if any, signature of the
Department or the Department's local representative and the date.
Approval of the plat shall be made effective thirty (30) days after
the plat is filed with the Department unless specifically rejected
prior to the expiration of the said thirty-day period of time.
3. The office of county clerk shall not record a plat
containing any lot of less than two and one-half (2 1/2) acres
situated outside the corporate limits of a municipality unless said
instrument bears the "approved" stamp of the Department. The
Department shall have no authority to disapprove and shall approve
plats of tracts that are being developed for individual residence in
which no single tract is less than two and one-half (2 1/2) acres,
provided that none of the lots are within three hundred (300) feet
of a public water supply source.
C. Persons creating or intending to create a residential
development, after receiving the stamp of approval from the
Department or the Department's local representative, shall file such
plat in the land records of the county where the residential
development is to be situated.
D. For purposes of this section, “subdivision of land for
purposes of a residential development” shall have the same meaning
as “subdivision” as defined in Section 863.9 of Title 19 of the
Oklahoma Statutes.
E. Any person who knowingly creates a residential development
without receiving the approval of the Department or the Department's
local representative of a plat or without filing of record a plat in
Oklahoma Statutes - Title 27A. Environment and Natural Resources Page 155
violation of this section, or who installs a private sewage
fined in Section 863.9 of Title 19 of the
Oklahoma Statutes.
E. Any person who knowingly creates a residential development
without receiving the approval of the Department or the Department's
local representative of a plat or without filing of record a plat in
Oklahoma Statutes - Title 27A. Environment and Natural Resources Page 155
violation of this section, or who installs a private sewage
treatment system on a lot for which disapproval of a private sewage
treatment system has previously been filed of record shall be deemed
guilty of a misdemeanor and upon conviction shall be punished by a
fine of not less than Five Hundred Dollars ($500.00) nor more than
Five Thousand Dollars ($5,000.00) for each violation.
F. The Department is authorized to use monies other than fees
or appropriated funds as such monies may be available to the
Department to offer financial assistance to indigent citizens of the
State of Oklahoma to reduce the incidence of surfacing sewage in the
State of Oklahoma.
Status: in_force · Read it on the official government site
Need a lawyer in Oklahoma?
Find a Oklahoma lawyer
About this page: Statute text is reproduced from official government publishers via the
Open US Law dataset
(Vaquill AI, snapshot v2026.08, CC BY 4.0). Primary legislative text like this is public domain under the government-edicts doctrine
(Georgia v. Public.Resource.Org, 2020). We link every section back to its official source so you can verify it independently.