Types of Sewer Permits

In addition to obtaining a permit to connect to the District's sewer (See How to Connect), the following types of businesses must obtain a "Non-Domestic Sewer Use Permit":

• Federally defined Categorical Users

• Businesses that discharge more than 25,000 gallons/day of process water

• Businesses that discharge more than 5% of the average daily plant capacity

• Businesses whose discharge might adversely affect the collection, treatment, or disposal of the wastewater

• Waste haulers
  Waste haulers require a special "Waste Hauler permit."

• Wastewater from groundwater cleanup operations
  These operations require a temporary discharge permit.

To find out if you need a Non-Domestic Sewer Use Permit, fill out the NSD pre-application questionnaire. Questionnaires are available by contacting Linda Candelaria (lindac@novatosan.com). The Manager-Engineer reviews your questionnaire to determine whether or not you will need a permit and the class of the Permit.

Types of Non-domestic
Sewer Use Permits

There are three classes (I, II, III) of Non-domestic Sewer Use permits.

Class I Non-Domestic Sewer Use Permit

All Significant Non-Domestic Users must obtain this permit. Significant non-domestic users are defined as:

1. Federal Categorical Users
   (Code of Federal Regulations based)

2. Discharge of more than 25,000 gallons/day of process water

3. Slug discharge of 5% or more of the average daily hydraulic capacity of the treatment plant

4. Slug discharge of 5% or more of the organic (BOD, TSS, TDS, etc) capacity of the treatment plant

5. Have a reasonable potential of adversely affecting the wastewater treatment and disposal facilities.
   

Class II Non-Domestic Sewer Use Permit and
Class III Non-Domestic Sewer Use Permit

Commercial, industrial or institutional establishments which, in the opinion of the Manager-Engineer, have a significant potential for intentional or accidental discharge of prohibited materials or other substances which may adversely affect collection, treatment or disposal processes of the District.

Waste Hauler Permit

Any waste hauler of raw domestic sewage may apply for a permit to discharge at the District's facilities.

The waste hauler must have a valid permit from the Marin County Department of Public Health. The raw domestic sewage must be from holding tanks or septage from septic tanks receiving only domestic wastewater within the following boundaries:

• North - Marin/Sonoma County line

• South - Alameda del Prado Overpass

• East - Petaluma River

• West - Point Reyes-Petaluma Road

Contact Linda Candelaria (lindac@novatosan.com) to obtain an application for the Waste Hauler permit.

Waste Water From Cleanup Projects

Section 811 of the District's Sanitary Code - Ordinance No. 70, pg. 25-26 - concerns the "Acceptance of Wastewater from Cleanup Projects".

Wastewater generated from the cleanup of spills, leaking underground storage tanks, contaminated soil or groundwater, monitoring wells or other similar sources shall not be discharged through direct or indirect connection to the District's sewer system unless the District issues a temporary discharge permit.

Please contact Linda Candelaria (lindac@novatosan.com) to request additional information.