Question 1

Do I need a permit for a septic system in North Dakota?

Accepted Answer

Yes. All new septic system installations and major repairs in North Dakota require a permit through your county health department. In McLean County and much of Central ND, this goes through the First District Health Unit. The process requires a soil evaluation and system design before a permit is issued.

Question 2

What are the setback requirements for septic systems in North Dakota?

Accepted Answer

North Dakota septic systems must be set back from wells (typically 50–100 feet depending on well type), property lines (usually 10 feet minimum), buildings, and water bodies. Exact requirements vary by county and system type. Your county health department or the First District Health Unit will specify setbacks as part of the permit process.

Question 3

What size septic tank do I need in North Dakota?

Accepted Answer

Tank size is determined by bedroom count. A 3-bedroom home typically requires a 1,000-gallon tank minimum; a 4-bedroom home usually requires 1,250–1,500 gallons. Your county health department sets the minimum sizing requirements — some counties require larger tanks regardless of bedroom count.

Question 4

What is the First District Health Unit and how does it relate to septic permits in Central ND?

Accepted Answer

The First District Health Unit (FDHU) is the public health agency that handles environmental health services — including septic system permits — for McLean, Burleigh, Kidder, Logan, McIntosh, and Sheridan Counties in Central North Dakota. If you're installing a septic system in McLean County (Washburn, Garrison, Underwood) or Burleigh County (Bismarck, Lincoln), the FDHU is the permitting authority you'll work with.

Question 5

How long does it take to get a septic permit in North Dakota?

Accepted Answer

The permitting timeline depends on scheduling a soil evaluation, submitting a system design, and waiting for county review. Expect the permit process to take three to six weeks or more depending on the time of year and county workload. Spring is the busiest period — starting the process in late winter or early spring gets you ahead of the seasonal rush.