Zoning, building permits and septic rules in Orrick, Missouri

Rules another office applies inside Orrick

Orrick does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

• Who permits septicMixed (with conditions)

  Onsite wastewater systems serving land inside Orrick city limits, subject to any applicable local administrative authority.

  • DHSS regulations cover single-family residential systems including lagoons and onsite or cluster systems treating domestic wastewater flows of 3,000 gallons per day or less through soil treatment/absorption.
  • DNR regulates lagoons serving anything other than single-family residences, systems discharging to surface waters, systems treating more than 3,000 gallons per day through soil treatment/absorption, and systems treating industrial wastewater.
  • The official state process page states that incorporated cities may be deferred to DHSS; no Orrick-specific local authority determination was located.

  “Missouri Department of Natural Resources (DNR) regulates all other sewage lagoons [...] Department of Health and Senior Services (DHSS) has developed minimum standards”

• Septic permitRequired

  Installation or repair of an onsite wastewater treatment system on land inside Orrick city limits, when state or local onsite-system jurisdiction applies.

  • Some single-family residential lots may be exempt from permitting.
  • For residential property less than three acres, the state FAQ says a construction permit is required; the exemption may not apply in some counties.
  • All other onsite systems serving non-residential structures require a permit regardless of property size.
  • The agency with permitting authority must be determined for the work location.

  residential-property-area: < 3 acres (Construction permit required under the state FAQ; some counties do not recognize the stated exemption.)

  “A construction permit is required before installing or repairing most onsite wastewater treatment systems (OWTS). Some single family residential lots may be exempt from permitting. The first step of the permitting process is to determine the agency that has permitting authority where the work is being done.”

• Septic inspectionNot required

  Onsite wastewater inspection or evaluation before a real-estate transaction involving land inside Orrick city limits, under the statewide baseline.

  • A lender or buyer may request an inspection or evaluation, which must be performed by a licensed individual.
  • Some counties may require an onsite-system inspection or evaluation for every real-estate transaction; no Orrick-specific local rule was located.

  “No. However, if a lender or buyer requests an inspection/evaluation, it must be conducted by a licensed individual. Some counties may require an onsite system inspection/evaluation for every real estate transaction. Check with the local permitting authority.”

• Off-grid sanitationLimited

  Onsite wastewater disposal on land inside Orrick city limits where central sewer service is unavailable and state onsite-system rules apply.

  • The system cannot pose a threat to public health or the environment.
  • Installation or repair of most systems requires a construction permit, subject to stated exemptions and local authority.

  “No. Your system cannot pose a threat to public health or to the environment.”

• Subdividing landLimited

  A subdivision, mobile-home park, or campground inside Orrick city limits when onsite wastewater treatment systems are planned.

  • DNR approval is required when OWTS use is planned.
  • This is not evidence of the existence or absence of a separate Orrick subdivision ordinance.

  “DNR must approve subdivisions, mobile home parks and campgrounds if the use of OWTS is planned.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Orrick or Ray County directly.

• Building permit — Residential construction inside Orrick city limits.
• Owner-builder exemption — Owner-built dwellings inside Orrick city limits.
• Building code adopted — Building construction inside Orrick city limits.
• Inspections — Residential construction inside Orrick city limits.
• Certificate of occupancy — Completed residential buildings inside Orrick city limits.

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.