Contact Information

You can reach us by phone at 206-463-5969 or by email

PO Box 1868
Vashon, WA 98070

Services Offered

The core service that we provide is the pumping of On-Site Septic Systems on Vashon and Maury Islands. Our goal has always been to offer timely, personal, and affordable septic tank service with honesty and respect for our Island home and our customers. With that as our goal, we strive to pump systems when they are ready to be pumped.

Septic system usage varies a great deal from home to home, depending on the number of occupants, how often the home is occupied, etc. Due to this, we do not typically recommend a standard pumping schedule of 3 years or 4 years. Instead, when we come to look at your system, we utilize a tool called a sludge judge to measure the level of the solids and scum layer in your tank. If those levels are close to or at the recommended levels for tank capacity set by King County, then we pump your tank. If not, we set a new estimate for a date to pump.

As a service to our customers, we send out reminder cards to you when your recommended pumping date has been reached. That way, you know it is likely time and you can call and schedule our next visit at your convenience.

Removing Soil for Tank Access:

While newer constructed On-Site Septic Systems typically have the tank access lids at grade and no soil removal is required, that is not the case for most older systems. For those systems, in the course of having your septic tank pumped, the soil above and approximately 6 inches surrounding each of your septic system lids must be removed in order to access and clean your tanks properly.

This is an additional service that we can provide to you. Our team makes every effort to neatly remove the landscaping and soil over the lids and then to replace it in the best manner possible to re-establish your landscaping as quickly as possible. We are also happy to provide any lid location coordinates that we have in our database if you prefer to expose the lids yourself.

Consultation on Septic & Pumping Related Matters:

There are times when you simply may not know who to call. We are a good place to start. Whether your pump tank alarm is going off, you have water surfacing in your yard, slowing or backing up of your drains, or you have a question about what plantings are advisable near your septic system, a call to us is a great place to start. We are happy to consult over the phone and often can point you in the right direction from there.

If we are unable to do so, our team can make a house call and see if we can set things right for you. Our licensing as septic pumper haulers allows us to unclog an inlet, clean a filter, and fix other simple problems of like variety for you. If it falls outside of our scope, we have a list of on island septic installers, plumbers, and other professionals that we are confident in referring you to.

We are also happy to consult with you on your system for landscape planning, your personal septic education, or any other septic related matters.

Tank Location Service:

We have made every effort to maintain in our database the locations of each of the tanks that we have pumped over the years to allow us to serve you with the least disruption to your landscaping possible. While the points of reference can sometimes change due to system upgrade, construction, or landscaping changes, these locations are typically accurate and to the center of each of the lids on your tank(s). We are happy to share the location of your tank with you should you need that for landscaping or other planning purposes.

If yours is one of the, relatively few, tanks on the island that we have never pumped and do not have a location for, we can locate the tank for you. Our team is often able to locate the tank through experience and informed guess work combined with probing the ground to locate the tank itself. We have available to us also all of the Niece Design Group “As-Builts” (drawings of your system as it was built) and can access any as-built King County has on file for your system to assist us as well.

However, when that educated guesswork or an unusually placed tank and/or system does not allow our team to readily locate the tank, our Radio Direction Finder (RDF) system is a terrific tool and service that we have available for you. A flushable devise, affectionately called a Sewer Rat, can be tracked through your system to the septic tank thus allowing us to locate your tank.

Company History

Niece Pumping Service, founded by Lawrence (Larry) Niece, had its origins as Niece Design Group which began designing rural waste treatment systems in the 1970s. Septic system repair and installation were added in the 1980s. Hundreds of the septic systems on Vashon Island were designed and or installed by the Niece Group of companies. The septic tank pumping service was added in 1990 and soon became the company’s principal activity. Niece Pumping Service is now the leading septic tank pumping service on Vashon. Larry Niece lead Niece Pumping Service until January of 2014, when he sold the business to Mark and Julie Romero who strive to run the business with the same care, level of ethics, and love of the Island that Larry did. Larry still consults with the new owners on a limited basis.

Julie Romero brings a variety of experiences in office management, book keeping, accounting, payroll handling, insurance, and customer service to the business. With a deep love of the island, she is pleased to be a part of and looking forward to the next 20 years at Niece Pumping.

Jim Freeland is also a familiar face with Niece Pumping, having worked with the company for some 20 years now. He provides invaluable septic system consultation and experience. He is one of the two licensed septic pumpers (with Mark being the other) that Niece Pumping has available to serve our customers.

Mark Romero brings years of experience in sanitation, work place safety, business management, and a love and respect for the Island he now calls home to the business. He is both a licensed septic pumper/owner and a licensed commercial driver. He is frequently the one seen driving the big red trucks, and if they are on the ferries you can be sure it is Mark driving.

The company’s iconic red trucks have made appearances in the Strawberry Festival parade (as seen in the image on our website header) and are frequently seen around the island as they care for the needs of island homes. They are also often sighted on the ferry, where they should receive frequent flyer miles as they are regular passengers while transporting the septage off island.

Niece Pumping lays tongue in cheek claim to the title of the Island’s # 1 exporter as all of the pumped septage is transported off the island to a King County disposal site in Renton, WA. There, most of the septage is turned into fertilizer which used on hay fields in neighboring areas. This use is good for the environment and good for maintaining the pristine beauty of our island and the quality of its surrounding Puget Sound waters.

Having served Vashon-Maury Island’s septic pumping needs since 1990, our goal has always been to offer timely, personal, and affordable septic tank service with honesty and respect for our Island home and our customers. That is a standard of service that will never change.

Septic Tank 10 Commandments

1. THOU SHALT NOT pour greases, fats, or oils down any drain.

2. THOU SHALT NOT attach a garbage disposal to your sink for ridding thyself of meat bones, coffee grounds, or other foods that are difficult to biodegrade.

3. THOU SHALT NOT dispose of paints of household chemicals in the drain (yea, verily, THOU SHALT ONLY use disinfectants in small amounts).

4. THOU SHALT NOT dispose of any automobile fluids, be they gas, oil, transmission or brake fluid, grease, or antifreeze, down any drain.

5. THOU SHALT NOT kill the beneficial bacteria in your septic system by rinsing pesticides, herbicides, or any other toxins down the drain.

6. THOU SHALT NOT dispose of any non-biodegradable items in your toilet, be they cigarette butts, hair, dental floss, disposable diapers, cat litter, baby wipes, condoms, or feminine hygiene products.

7. THOU SHALT NOT let water run while washing dishes and thawing frozen foods, and SHALL consider limiting flushes.

8. THOU SHALT NOT run half loads in the dishwasher or washing machine, and SHALL stagger wash loads (NOT none on the Sabbath and then six on Monday.)

9. THOU SHALT NOT use chemicals to clean up your septic system, yea they could harm the septic tank, drainfield, or groundwater.

10. THOU SHALT NOT attach clean water sources, such as footing or sump pumps, to the septic system.

Hours of Operation

Septic services can be scheduled Monday-Friday as the schedule allows.