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Marshall County Supplemental Septic Rules and Regulations

by Jonathan Bailey — last modified 2013-03-07 09:02 PM
  1. Marshall County will charge a septic permit application fee of $200.00.
  2. Marshall County will not permit any system that has not been inspected by the County unless waived by the Director of Marshall County Public Environmental Health.
  3. Marshall County requires a minimum of 240 lineal feet of gravel-less subsurface absorption trench for all systems, regardless of the number of bedrooms or percolation test results.
    1. For gravel systems a 20% increase for a total of 288 lineal feet of gravel subsurface absorption trench shall be required.
    2. For 24”-36” gravel-less systems a 20% reduction for a total of 198 lineal feet of gravelless subsurface absorption trench shall be allowed.
  4. All tanks must be accessible by either a center riser with manhole cover or inlet and outlet clean-outs.
  5. All distribution boxes will have an inlet flow limiter consisting of either a 90º elbow pointing to the bottom of the box or a “T” connection with one opening of the “T” pointing toward the bottom of the box and one opening pointing toward the lid.
  6. All outlets from a distribution box shall be fitted with flow regulators (otherwise known as “speed levelers”).
  7. When necessary, the Director of Marshall County Public Environmental Health may require other measures not included in Chapter 567-69 of the Iowa Administrative Code or in these supplemental rules to ensure proper installation and operation of any onsite private sewage treatment system permitted under IAC 567-69.
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