1. Directory
  2. Washington
  3. Tacoma
  4. Washington On-Site Sewage and Water System Designers Association
EIN 91-1532751

Washington On-Site Sewage and Water System Designers Association

IRS 501(c) type
501(c)(6)
Num. employees
4
City
Tacoma
State
Washington
Year formed
1990
Most recent tax filings
2023-12-01
NTEE code, primary
C20: Pollution Abatement and Control Services
Description
The Washington On-Site Sewage and Water System Designers Association champions sustainable wastewater disposal and treatment practices, striving to restore water to communities as it was found. The Association represents its members, provides training classes, disseminates newsletters, shares general information, and offers administrative services.
Also known as...
Wa On-Site Sewer Association Design System
Total revenues
$887,423
2023
Total expenses
$719,416
2023
Total assets
$673,176
2023
Num. employees
4
2023

Program areas at Washington On-Site Sewage and Water System Designers Association

State representation, membership training classes, newsletter, general information sharing, and administrative services.
State representation, membership training classes, newsletter, general information sharing, and administrative services.

Personnel at Washington On-Site Sewage and Water System Designers Association

NameTitleCompensation
Chuck AhrensExecutive Director
Andrea DodsonOffice Manager
Andrea Dodson-OfficeManager
William CrevelingTreasurer$0
Mike AhrensPast President / Vice President$0
...and 4 more key personnel

Financials for Washington On-Site Sewage and Water System Designers Association

RevenuesFYE 12/2023
Total grants, contributions, etc.$322,585
Program services$564,748
Investment income and dividends$90
Tax-exempt bond proceeds$0
Royalty revenue$0
Net rental income$0
Net gain from sale of non-inventory assets$0
Net income from fundraising events$0
Net income from gaming activities$0
Net income from sales of inventory$0
Miscellaneous revenues$0
Total revenues$887,423

Form 990s for Washington On-Site Sewage and Water System Designers Association

Fiscal year endingDate received by IRSFormPDF link
2023-122024-11-15990View PDF
2022-122023-11-13990View PDF
2021-122022-11-15990View PDF
2020-122021-11-12990View PDF
2018-122020-02-10990View PDF
...and 8 more Form 990s
Data update history
April 4, 2024
Updated personnel
Identified 1 new personnel
January 3, 2024
Posted financials
Added Form 990 for fiscal year 2022
November 25, 2023
Posted financials
Added Form 990 for fiscal year 2021
August 17, 2023
Posted financials
Added Form 990 for fiscal year 2020
July 6, 2023
Updated personnel
Identified 7 new personnel
Nonprofit Types
Professional associationsBusiness and community development organizationsEnvironmental organizations
Issues
PollutionEnvironmentCommunity improvementBusiness and industry
Characteristics
MembershipsState / local levelReceives government funding
General information
Address
PO Box 9279
Tacoma, WA 98490
Metro area
Seattle-Tacoma-Bellevue, WA
County
Pierce County, WA
Website URL
wossa.org/default.aspx 
Phone
(253) 297-2837
IRS details
EIN
91-1532751
Fiscal year end
December
Taxreturn type
Form 990
Year formed
1990
Eligible to receive tax-deductible contributions (Pub 78)
No
Categorization
NTEE code, primary
C20: Pollution Abatement and Control Services
NAICS code, primary
813920: Professional Associations
Parent/child status
Independent
Free account sign-up

Want updates when Washington On-Site Sewage and Water System Designers Association has new information, or want to find more organizations like Washington On-Site Sewage and Water System Designers Association?

Create free Cause IQ account
Cause IQ is a website that helps companies grow, maintain, and serve their nonprofit clients, and helps nonprofits find additional foundation funding. Our data and tools help professionals prospect for nonprofits, research opportunities, benchmark their clients, and enrich existing information.
Nonprofits
Product
Customers
About

© 2025 Nonprofit Metrics LLC
Terms of Service and Privacy Policy