State of Oregon: Residential - Approved Tanks and Distribution Units

Only those tank sizes and configurations that are listed on the List of Approved Tanks and Distribution Units are approved for installation currently.

How to use the list of approved Tanks and Distribution Units

Choose from the list below to find approved materials manufacturers:

Company Name	Product Name	Tank Material	Location	ID:
A-1 Redi-Mix	1000-gal concrete septic tank	concrete	State: Washington	1,840
A-1 Redi-Mix	1500-gal concrete septic tank	concrete	State: Washington	1,840
A-1 Redi-Mix	1500-gal concrete partitioned dosing septic tank	concrete	State: Washington	1,840
Advanced Precast Products	1000-gal concrete low profile (46”) septic tank	concrete	County: Deschutes	1,209
Advanced Precast Products	1000-gal concrete high profile (52”) septic tank	concrete	County: Deschutes	1,209
Advanced Precast Products	1000-gal concrete high profile (52”) dosing septic tank	concrete	County: Deschutes	1,209
Advanced Precast Products	1500-gal 2-comp. concrete tank, flow-through configuration	concrete	County: Deschutes	1,209
Advanced Precast Products	1500-gal concrete dosing septic tank	concrete	County: Deschutes	1,209
Advanced Precast Products	1500-gal concrete septic tank, holding tank	concrete	County: Deschutes	1,209
Attbar, Inc.	1000-gal FRP septic tank	fiber reinforced plastic	State: Washington	1,640
Attbar, Inc.	1000-gal FRP dosing septic tank	fiber reinforced plastic	State: Washington	1,640
Attbar, Inc.	1500-gal FRP septic tank	fiber reinforced plastic	State: Washington	1,640
Attbar, Inc.	1500-gal FRP septic tank used as a holding tank	fiber reinforced plastic	State: Washington	1,640
Attbar, Inc.	1500-gal FRP dosing septic tank	fiber reinforced plastic	State: Washington	1,640
Belco Manufacturing Co.	1000-gal steel septic tank	steel	County: Multnomah	126
Belco Manufacturing Co.	1000-gal steel septic tank model S1000-T	steel	County: Multnomah	126
Bob Humbert & Son, Inc.	500-gal conc. septic dosing tank	concrete	County: Umatilla	1,030
Bob Humbert & Son, Inc.	1000-gal conc. septic tank	concrete	County: Umatilla	1,030
Bob Humbert & Son, Inc.	1000-gal conc. dosing septic tank	concrete	County: Umatilla	1,030
Bob Humbert & Son, Inc.	1500-gal conc. dosing septic tank	concrete	County: Umatilla	1,030
Bob Humbert & Son, Inc.	1500-gal conc. septic tank, holding tank	concrete	County: Umatilla	1,030
Bob Humbert & Son, Inc.	1500-gal two compartment tank-Septic Tank	concrete	County: Umatilla	1,030
Bob Humbert & Son, Inc.	1500-gal two compartment tank-Septic & Dosing Tank	concrete	County: Umatilla	1,030
Central Oregon Redi-Mix, LLC	1000-gal conc. septic tank	concrete	County: Deschutes	1,509
Central Oregon Redi-Mix, LLC	1100-gal conc. septic tank	concrete	County: Deschutes	1,509
Central Oregon Redi-Mix, LLC	1100-gal conc. single compartment dosing septic tank	concrete	County: Deschutes	1,509
Central Oregon Redi-Mix, LLC	1500-gal conc. septic tank	concrete	County: Deschutes	1,509
Central Oregon Redi-Mix, LLC	1500-gal conc. single compartment dosing septic tank	concrete	County: Deschutes	1,509
D&K Concrete Products	1000-gal conc. septic tank	concrete	State: Washington	540
D&K Concrete Products	1000-gal conc. dosing septic tank	concrete	State: Washington	540
D&K Concrete Products	1500-gal conc. septic tank	concrete	State: Washington	540
D&K Concrete Products	1500-gal conc. two-comp. septic tank	concrete	State: Washington	540
D&K Concrete Products	1500-gal conc. dosing septic tank	concrete	State: Washington	540
D&K Concrete Products	1500-gal conc. two-comp. dosing septic tank	concrete	State: Washington	540
D&K Concrete Products	Conc. Dist. & Drop Boxes	concrete	State: Washington	540
Duke’s Septic Tanks	1000-gal conc. round septic tank	concrete	State: Idaho	850
Duke’s Septic Tanks	1000-gal conc. rectangular septic tank	concrete	State: Idaho	850
East Moon Pre-Cast	500-gal dosing tank	concrete	County: Klamath	1,409
East Moon Pre-Cast	1000-gal single comp. septic tank w/effluent filter	concrete	County: Klamath	1,409
East Moon Pre-Cast	1500-gal single comp. septic tank	concrete	County: Klamath	1,409
East Moon Pre-Cast	1500-gal 2-comp. septic tank	concrete	County: Klamath	1,409
East Moon Pre-Cast	2000-gal single comp. dosing septic tank	concrete	County: Klamath	1,409
East Moon Pre-Cast	1500-gal conc. partition septic tank	concrete	County: Klamath	1,409
Infiltrator Systems, Inc.	“The DistributorTM” HDPE dist. box	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	“The DistributorTM” HDPE drop box	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	TW-500 gallon dosing tank	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	Infiltrator TW Series Anti-buoyancy Countermeasures	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	TW-1050 gallon septic tank	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	TW-1050 gallon dosing septic tank	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	TW-1500 gallon septic tank	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	TW-1500 gallon partitioned septic tank	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	IM-1060 gallon septic tank	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	IM-1060 gallon dosing septic tank	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	IM-540 gallon dosing tank	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	TW-1500 gallon partitioned dosing septic tank	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	IM-1530 gallon septic tank Approval Letter, Drawing, Installation Manual	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	IM-1530 dosing septic tank Approval Letter, Drawing, Installation Manual	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	IM-1530 partitioned dosing septic tank (1,300 gallons) Approval Letter, plans and installation	plastic	State: Connecticut	580
Infiltrator Systems, Inc.	IM-1530 gallon partitioned septic tank Approval Letter, plans and installation	plastic	State: Connecticut	580
Jefferson State Redi-Mix, Inc.	500-gal conc. dosing tank	concrete	County: Klamath	218
Jefferson State Redi-Mix, Inc.	1000-gal conc. low profile septic tank	concrete	County: Klamath	218
Jefferson State Redi-Mix, Inc.	1000-gal conc. septic tank	concrete	County: Klamath	218
Jefferson State Redi-Mix, Inc.	1100-gal conc. low profile dosing septic tank	concrete	County: Klamath	218
Jefferson State Redi-Mix, Inc.	1500-gal conc. dosing septic	concrete	County: Klamath	218
Jefferson State Redi-Mix, Inc.	1100-gal conc. dosing septic	concrete	County: Klamath	218
Jefferson State Redi-Mix, Inc.	1500-gal conc. 2-comp. septic and dosing tank	concrete	County: Klamath	218
Jefferson State Redi-Mix, Inc.	1500-gal conc. septic tank	concrete	County: Klamath	218
Jensen Precast	Conc. distribution box	concrete	County: Deschutes	1,309
Jensen Precast	1000-gal conc. septic tank	concrete	County: Deschutes	1,309
Jensen Precast	1100-gal conc. septic tank	concrete	County: Deschutes	1,309
Jensen Precast	1500-gal conc. single compartment dosing septic tank	concrete	County: Deschutes	1,309
Jensen Precast	1500-gal conc. septic tank	concrete	County: Deschutes	1,309
Jensen Precast	1100-gal conc. single compartment dosing septic tank	concrete	County: Deschutes	1,309
Jensen Precast	1500-gal conc. dosing tank (KR1500SDT)	concrete	County: Deschutes	1,309
Jensen Precast	1500-gal. two-chamber septic tank	concrete	County: Deschutes	1,309
Jensen Precast	2000-gal conc. septic tank	concrete	County: Deschutes	1,309
Jensen Precast	2000-gal conc. single compartment dosing septic tank	concrete	County: Deschutes	1,309
Jensen Precast	2500-gal conc. septic tank	concrete	County: Deschutes	1,309
Jensen Precast	2500-gal conc. single compartment dosing septic tank	concrete	County: Deschutes	1,309
Jensen Precast	3000-gal conc. septic tank	concrete	County: Deschutes	1,309
Jensen Precast	3000-gal conc. single compartment dosing septic tan	concrete	County: Deschutes	1,309
Jerry O’Leary	1500-gal conc. dosing septic tank	concrete	County: Lake	119
Jerry O’Leary	1000-gal conc. vault toilet	concrete	County: Lake	119
Jerry O’Leary	1500-gal conc. septic tank	concrete	County: Lake	119
Jerry O’Leary	1000-gal conc. septic tank	concrete	County: Lake	119
Jerry O’Leary	1500-gal conc. holding tank	concrete	County: Lake	119
Joe Floyd & Sons	1000-gal conc. septic tank	concrete	County: Crook	1,609
Joe Floyd & Sons	1500-gal conc. two-chamber septic tank	concrete	County: Crook	1,609
Joe Floyd & Sons	1500-gallon concrete septic tank	concrete	County: Crook	1,609
Joe Floyd & Sons	1000-gallon concrete low profile septic tank Drawings	concrete	County: Crook	1,609
Joe Floyd & Sons	1500-gallon concrete low profile septic tank Drawings	concrete	County: Crook	1,609
Joe Floyd & Sons	2000-gallon concrete low profile septic tank Drawings	concrete	County: Crook	1,609
Joe Floyd & Sons	1000-gallon concrete low profile septic tank (H20 loaded) Drawings	concrete	County: Crook	1,609
Joe Floyd & Sons	1500-gallon concrete low profile septic tank (H20 loaded) Drawings	concrete	County: Crook	1,609
Joe Floyd & Sons	2000-gallon concrete low profile septic tank (H20 loaded) Drawings	concrete	County: Crook	1,609
Joe Floyd & Sons	3000-gallon traffic rated (H20) septic tank	concrete	County: Crook	1,609
Joe Floyd & Sons	3000-gallon septic tank	concrete	County: Crook	1,609
Koncrete Industries	1250-gal conc. septic tank	concrete	State: Washington	1,340
Koncrete Industries	1250-gal conc. dosing septic tank	concrete	State: Washington	1,340
La Pine Redi-Mix, Inc.	1000-gal conc. septic tank	concrete	County: Deschutes	809
La Pine Redi-Mix, Inc.	1100-gal conc. dosing septic tank	concrete	County: Deschutes	809
La Pine Redi-Mix, Inc.	1250-gal conc. septic tank	concrete	County: Deschutes	809
La Pine Redi-Mix, Inc.	1500-gal partition tank	concrete	County: Deschutes	809
La Pine Redi-Mix, Inc.	1500-gal conc. dosing septic tank	concrete	County: Deschutes	809
Lar-Ken Septic Tanks, Inc.	1000-gal conc. single-comp. septic tank	concrete	State: Idaho	750
Michael’s Pre-Cast Concrete	Conc. distribution and drop boxes	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	500-gal conc. dosing tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	1000-gal conc. septic tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	1000-gal conc. H-20 rated septic tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	1000-gal conc. double-compartment septic tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	1000-gal conc. dosing septic tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	1500-gal conc. septic tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	1500-gal conc. H-20 rated septic tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	1500-gal conc. H-20 rated holding tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	1500-gal conc. dosing septic tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	1500-gal conc. septic double tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	1500-gal conc. holding tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	1000-gal conc. H-20 rated dosing septic tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	1500-gal conc. dosing septic double tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	1500-gal conc. H-20 rated dosing septic tank	concrete	County: Clackamas	403
Michael’s Pre-Cast Concrete	Octagonal 360 ft2 Sand Filter	sand	County: Clackamas	403
Mike Tresham Backhoe Service	1000-gal conc. septic tank	concrete	County: Umatilla	230
Miller & Sons Excavating	1000-gal. conc. septic tank, low profile	concrete	County: Morrow	125
Norwesco, Inc.	500-gal spherical polyethylene dosing tank (LIMITED)	polyethylene	State: Minnesota	1,810
Norwesco, Inc.	1000-gal polyethylene septic tank (LIMITED)	polyethylene	State: Minnesota	1,810
Norwesco, Inc.	1000-gal polyethylene Low Profile septic tank Drawings	polyethylene	State: Minnesota	1,810
Norwesco, Inc.	1250-gal polyethylene septic tank (LIMITED)	polyethylene	State: Minnesota	1,810
Norwesco, Inc.	1250-gal polyethylene Low Profile septic tank Drawings	polyethylene	State: Minnesota	1,810
Norwesco, Inc.	1500-gal polyethylene septic tank (LIMITED) Drawings	polyethylene	State: Minnesota	1,810
Norwesco, Inc.	1500-gal polyethylene Low Profile septic tank Drawings	polyethylene	State: Minnesota	1,810
Norwesco, Inc.	Bruiser 1000-gal polyethylene septic tank (LIMITED)	polyethylene	State: Minnesota	1,810
Norwesco, Inc.	Bruiser 1500-gal polyethylene septic tank (LIMITED)	polyethylene	State: Minnesota	1,810
Norwesco, Inc.	Bruiser 1250-gal polyethylene septic tank (LIMITED)	polyethylene	State: Minnesota	1,810
Norwesco, Inc.	Addendum for low profile septic tanks	polyethylene	State: Minnesota	1,810
Orenco Systems, Inc.	500-gal FRP dosing tank	fiber reinforced plastic	County: Douglas	410
Orenco Systems, Inc.	750-gal FRP dosing tank	fiber reinforced plastic	County: Douglas	410
Orenco Systems, Inc.	1000-gal FRP septic tank	fiber reinforced plastic	County: Douglas	410
Orenco Systems, Inc.	1500-gal FRP septic tank	fiber reinforced plastic	County: Douglas	410
Orenco Systems, Inc.	1500-gal FRP septic tank used as a holding tank	fiber reinforced plastic	County: Douglas	410
Orenco Systems, Inc.	1000-gal FRP dosing septic tank	fiber reinforced plastic	County: Douglas	410
Orenco Systems, Inc.	1500-gal FRP dosing septic tank	fiber reinforced plastic	County: Douglas	410
Orenco Systems, Inc.	1500-gal FRP septic/dosing septic tanks w/flow-thru baffle	fiber reinforced plastic	County: Douglas	410
Orenco Systems, Inc.	1500-gal FRP two-compartment dosing septic tank	fiber reinforced plastic	County: Douglas	410
Orenco Systems, Inc.	1500-gal FRP two-compartment septic tank	fiber reinforced plastic	County: Douglas	410
Orenco Systems, Inc.	1,000 gallon partitioned dosing septic tank	Plastic	Douglas	410
Polylok, Inc.	All-in-One Distribution Box	plastic	State: Connecticut
Precast Concepts, LLC	1000 gal conc. septic tank	concrete	County: Lane	320
Precast Concepts, LLC	1500 gal conc. Partitioned dosing septic tank	concrete	County: Lane	320
Pre-Cast Concrete Products	1000-gal conc. 2-piece septic tank	concrete	State: Idaho	650
Pre-Cast Concrete Products	1000-gal conc. 2-piece dosing septic tank	concrete	State: Idaho	650
Pre-Cast Concrete Products	1000-gal conc. 2-piece dosing tank	concrete	State: Idaho	650
Premier Plastics Inc.	1,000 gallon Supertank septic tank	plastic	Province: British Columbia	1,080
Reese Concrete Products	1500-gallon concrete septic tank	concrete	State: Washington
Reese Concrete Products Man. Inc.	1500-gal 2-comp. conc. septic & dosing tank	concrete	State: Washington	1,540
Reese Concrete Products Man. Inc.	1000-gal conc. septic tank	concrete	State: Washington	1,540
Riverside Readymix, Inc.	1000-gal dosing tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	1100-gal dosing septic tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	1000-gal septic tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	1500-gal septic tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	1500-gal dosing septic tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	1500-gal dosing tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	1500-gal partition dosing septic tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	1500-gal 2-comp. septic tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	3000-gal septic tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	1500-gal 2-comp. septic & dosing tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	3000-gal dosing tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	2350-gal septic tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	500-gal dosing tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	2350-gal dosing tank	concrete	County: Josephine	517
Riverside Readymix, Inc.	2350-gal septic dosing tank	concrete	County: Josephine	517
Roth Global Plastics, Inc.	750 gallon dosing tank	plastic	State: New York	780
Roth Global Plastics, Inc.	500 gallon dosing tank Approved Drawings	plastic	State: New York	780
Roth Global Plastics, Inc.	1060 gallon partitioned septic tank	plastic	State: New York	780
Roth Global Plastics, Inc.	1250 gallon dosing septic tank	plastic	State: New York	780
Roth Global Plastics, Inc.	1060 gallon dosing septic tank	plastic	State: New York	780
Roth Global Plastics, Inc.	1250 gallon septic tank	plastic	State: New York	780
Roth Global Plastics, Inc.	1250 gallon partitioned septic tank	plastic	State: New York	780
Roth Global Plastics, Inc.	1500 gallon septic tank	plastic	State: New York	780
Roth Global Plastics, Inc.	1500 gallon dosing septic tank	plastic	State: New York	780
Roth Global Plastics, Inc.	Monster Distribution Box	plastic	State: New York	780
Roth Global Plastics, Inc.	1060 gallon septic tank	plastic	State: New York	780
Roth Global Plastics, Inc.	1500 gallon partitioned septic tank	plastic	State: New York	780
Roth Global Plastics, Inc.	RMT-500 gallon dosing tank	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-750 gallon dosing tank	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-1000E, 1,000 gallon septic tank Approved Drawings	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-1000E, 1,000 gallon dosing tank	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-1000E, 1,000 gallon partitioned septic tank	plastic	State: New York
Roth Global Plastics, Inc.	RMT-1,060 gallon partitioned septic tank	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-1,060 gallon dosing septic tank	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-1,060 gallon septic tank	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-1,060 gallon partitioned dosing septic tank	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-1,250 gallon dosing septic tank	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-1,500 gallon septic tank	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-1,250 gallon septic tank	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-1,500 gallon dosing septic tank	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-1,250 gallon partitioned dosing septic tank	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-1,500 gallon partitioned septic tank	plastic	State: New York	880
Roth Global Plastics, Inc.	RMT-1,500 gallon partitioned dosing septic tank	plastic	State: New York	880
Snyder Industries	1,000 gallon Dominator septic tank	plastic	State: Nebraska	980
Snyder Industries	1,000 gallon Dominator partitioned septic tank	plastic	State: Nebraska	980
Snyder Industries	1,000-gal polyethylene Low Profile septic tank	plastic	State: Nebraska	980
Snyder Industries	1,500-gal polyethylene Low Profile septic tank	plastic	State: Nebraska	980
Snyder Industries	1,250-gal polyethylene Low Profile septic tank	plastic	State: Nebraska	980
Snyder Industries	1,500 gallon Dominator septic tank	plastic	State: Nebraska	980
Snyder Industries	1,500 gallon Dominator partitioned septic tank	plastic	State: Nebraska	980
Steele's Septic Tank Service	1000-gal Low Profile conc. septic tank	concrete	County: Union	131
Steele's Septic Tank Service	1000-gal conc. septic tank, holding tank	concrete	County: Union	131
Steele's Septic Tank Service	1000-gal conc. dosing septic tank	concrete	County: Union	131
Steele's Septic Tank Service	1500-gal 2-piece conc. septic tank and holding tank	concrete	County: Union	131
Steele's Septic Tank Service	1050-gal 2-piece conc. septic tank	concrete	County: Union	131
Steele's Septic Tank Service	1600-gal conc. septic tank	concrete	County: Union	131
Steele's Septic Tank Service	2100-gal septic tank	concrete	County: Union	131
Steele's Septic Tank Service	Conc. distribution box with 3-hole outlets	concrete	County: Union	131
Steele's Septic Tank Service	Conc. distribution box with 5-hole outlets	concrete	County: Union	131
Steele's Septic Tank Service	Conc. drop box	concrete	County: Union	131
Steele's Septic Tank Service	1600-gal two-chamber combination septic & dosing tank	concrete	County: Union	131
TJK Tanks	1000-gal conc. septic tank Approval letter Installation Manual	concrete	County: Wallowa	332
TJK Tanks	1100-gal conc. dosing septic tank Approval letter Installation Manual	concrete	County: Wallowa	332
Tuff-Tite, Inc.	Poly Dist Box (4HD2, 7HD2, 9HD3)	polyethylene	State: Illinois	280
Tuff-Tite, Inc.	Poly Drop Box (6"DB)	polyethylene	State: Illinois	280
Utility Vault Company	3000-gal septic tank	concrete	County: Clackamas	303
Waite Concrete Products	Conc. distribution and drop boxes	concrete	County: Clackamas	103
Waite Concrete Products	500-gal conc. dosing tank; holding tank	concrete	County: Clackamas	103
Waite Concrete Products	1000-gal conc. septic tank	concrete	County: Clackamas	103
Waite Concrete Products	1000-gal 2-piece (mid seam) dosing septic tank	concrete	County: Clackamas	103
Waite Concrete Products	1000-gal 2-piece septic tank	concrete	County: Clackamas	103
Waite Concrete Products	1000-gal conc. dosing septic tank	concrete	County: Clackamas	103
Waite Concrete Products	1000-gal 2-piece (mid seam) septic tank	concrete	County: Clackamas	103
Waite Concrete Products	1500-gal conc. septic tank; holding tank	concrete	County: Clackamas	103
Waite Concrete Products	1500-gal conc. dosing septic tank	concrete	County: Clackamas	103
Waite Concrete Products	1500-gal conc. partitioned dosing septic tank	concrete	County: Clackamas	103
Waite Concrete Products	1500-gal conc. 2-comp. septic and dosing tank	concrete	County: Clackamas	103
Waite Concrete Products	1500-gal conc. 2-comp. septic tank	concrete	County: Clackamas	103
Waite Concrete Products	3000-gal conc. septic tank; holding tank	concrete	County: Clackamas	103
Waite Concrete Products	3000-gal conc. dosing septic tank	concrete	County: Clackamas	103
Waite Concrete Products	2000-gal conc. septic tank; dosing tank; holding tank	concrete	County: Clackamas	103
Waite Concrete Products	3000-gal conc. septic tank; dosing tank; holding tank	concrete	County: Clackamas	103
Waite Concrete Products	3000-gal conc. H-20 rated septic tank	concrete	County: Clackamas	103
Waite Concrete Products	1000-gal conc H-20 septic tank	concrete	County: Clackamas	103
Waite Concrete Products	3000-gal conc. H-20 rated partitioned septic tank	concrete	County: Clackamas	103
Waite Concrete Products	1000-gal conc H-20 dosing septic tank	concrete	County: Clackamas	103
Waite Concrete Products	1500-gal conc H-20 partitioned septic tank	concrete	County: Clackamas	103
Waite Concrete Products	1500-gal conc H-20 septic tank	concrete	County: Clackamas	103
Waite Concrete Products	1500-gal conc H-20 holding tank	concrete	County: Clackamas	103
Waite Concrete Products	2000-gal conc H-20 septic tank	concrete	County: Clackamas	103
Waite Concrete Products	2,000-gal conc H-20 holding tank	concrete	County: Clackamas	103
Waite Concrete Products	2000-gal conc H-20 dosing septic tank	concrete	County: Clackamas	103
Waite Concrete Products	1500-gal conc H-20 particitioned septic tank Instruction Manual Approval Letter	concrete	County: Clackamas	103
Waite Concrete Products	1300-gal conc H-20 2-compseptic and dosing tank Approval Letter	concrete	County: Clackamas	103
Waldport Ready Mix	1000-gal conc. septic tank	concrete	County: Lincoln	121
Waldport Ready Mix	1100-gal conc. dosing septic tank	concrete	County: Lincoln	121
Waldport Ready Mix	1500-gal conc. septic tank	concrete	County: Lincoln	121
Waldport Ready Mix	1500-gal conc. dosing septic tank	concrete	County: Lincoln	121
Waldport Ready Mix	1500-gal conc. partitioned dosing septic tank	concrete	County: Lincoln	121
Westfall	1500 gallon conc. two compartment septic tank W/ filter	concrete	County: Umatilla	130
Westfall	1500 gallon conc. two compartment septic tank W/O filter	concrete	County: Umatilla	130
Westfall	1500 gallon conc. partition dosing septic tank	concrete	County: Umatilla	130
Westfall	1000 gallon conc. septic tank	concrete	County: Umatilla	130
Westfall	500 gallon conc. dosing tank	concrete	County: Umatilla	130
Westfall	1000 gallon conc. dosing septic tank	concrete	County: Umatilla	130
Willamette Graystone, Inc.	Conc. Dist. & Drop Boxes	concrete	County: Douglas	310
Willamette Graystone, Inc.	500-gal dosing tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	1000-gal low profile septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	1000-gal low profile dosing septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	1000-gal conc. septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	1000-gal dosing septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	1000-gal Clamshell septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	1000-gal partitioned dosing septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	1250-gal septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	1500-gal conc. septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	1500-gal conc. 2-compartment septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	1500-gal conc. dosing septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	1500-gal conc. holding tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	1500-gal conc. “partition” dosing septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	1500-gal conc. 2-compartment septic & dosing tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	2000-gal conc. septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	3000-gal conc. septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	3000-gal conc. dosing septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	2000-gal conc. dosing septic tank	concrete	County: Douglas	310
Willamette Graystone, Inc.	3000-gal conc. holding tank (outlet sealed)	concrete	County: Douglas	310

Residential

Approved Tanks and Distribution Units

OnsiteApprovedTanks ‭[1]‬