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Septic Maintenance Damascus Oregon & Surrounding Areas

Proper septic maintenance is vital for the overall health of you septic wastewater systems and Goodman Sanitation in Portland, OR provides you with the knowledge and experience to keep your systems in optimum working order. Our services offers by licensed professionals include:

Regularly scheduled pumping of the septic tanks (every 1 - 3 years depending on usage)
Maintenance and service of septic tanks and all working parts of your systems
Repairs and replacements of pumps, pipes, and septic tanks
Inspections to locate septic tanks and drainfields
Real estate evaluations for homebuyers, sellers, and realtors
Septic Tank System designs

Having a septic tank systems requires a careful mindset regarding wastewater production. A conscientious concern of how you are using your water and sewage systems is a healthy thing.

Houshold size (Number of People)
Tank Size
1 2 3 4 5 6 7 8 9 10
500 5.8 2.6 1.5 1.0 0.7 0.4 0.3 0.2 0.1 -0.7
500 9.1 4.2 2.6 1.8 1.3 1.0 0.7 0.6 0.4 0.3
1000 12.4 5.9 3.7 2.6 2.0 1.5 1.2 1.0 0.8 0.7
1250 15.6 7.5 4.8 3.4 2.6 2.0 1.7 1.4 1.2 1.0
1500 18.9 9.1 5.9 4.2 3.3 2.6 2.1 1.8 1.5 1.3
1750 22.1 10.7 6.9 5.0 3.9 3.1 2.6 2.2 1.9 1.6
2000 25.4 12.4 8.0 5.9 4.5 3.7 3.1 2.6 2.2 2.0
2250 28.6 14.0 9.1 6.7 5.2 4.2 3.5 3.0 2.6 2.3
2500 31.9 15.6 10.2 7.5 5.9 4.8 4.0 4.0 3.0 2.6

Note: More frequent pumping needed if garbage disposal is used


Provided through a grant from the Farmer Home Administration. The material is the result of tax supported research and as such is not copyrightable. It may be freely reprinted with the customary crediting of sources.

Extension Services, Oregon State University, Corvallis, O.E. Smith, director.
This publication was produced and distributed in furtherance of the Acts of Congress of May 8 and June 30, 1914. Extension work is a cooperative program of Oregon State University, the U.S. Department of Agriculture, and Oregon counties.
Oregon State University Extension Service offers educational programs, activities, and materials – without regard to race, color, national origin, sex, age, or disability – as required by Title VI of the Civil Rights Act of 1964, Tax IX of the Education Amendments of 1972, and Section 504 of the Rehabilitation Act of 1973. Oregon State University Extension Service is an Equal Opportunity Employer.


There are inspections for homeowners who want to remodel their homes with additions to the house or property.

There are inspections for hardship cases for homeowners who want to add a mobile home to the property and attach to the existing septic systems. There is the "time of transfer" inspection / evaluation when the homeowner is selling the property.

Each of these inspections require that the tank be uncovered, the distribution box(es) be uncovered, that there is an amount of water introduced to the tank, to watch the contents flow to the distribution box and be accepted by a "thirsty" drainfield, to pump the tank and note any deficiencies.

To do an inspection on any and all pump vault components and panels along with electrical connections. To provide a detailed plot plan meeting all DEQ Specified requirements with all DEQ forms filled in completely with our technicians "certified" number and identification on the reports.

Should any repairs be needed to help bring your systems "up to date" with compliance codes. We will outline the repairs and the cost and schedule an appointment for you. This gives you time to make an informed decision, ask questions, research websites, or ask for comparison bids for repair or work on fitting the repairs into your budget.

Your septic systems is the second biggest investment, next to your home and Goodman Sanitation will be considerate on how you spend your money.