Fiscal year ending 2024. Filed on July 7, 2025.
PO Box 2570
Ellicott City, Maryland 21041
Maryland Onsite Wastewater P a (EIN: 20-2130265) has filed an IRS Form 990 since fiscal year 2017. In its fiscal year 2024 IRS Form 990 filing, Maryland Onsite Wastewater P a, a 501(c)(6) business league, reported compensation for 9 employees. Among the employees shown here, the average compensation is $0. Maryland Onsite Wastewater P a changed its name from Maryland Onsite Wastewater Professionals Association in 2023.
Revenue
Expenses
Employee compensation
PROFESSIONAL ASSOCIATIONEDUCATION-PROVIDED TRAINING FOR ONSITE SEWAGE DISPOSALCONFERENCE-HOSTED ANNUAL CONFERENCENETWORKING-PUBLISHED NEWSLETTER AND HOSTED SOCIAL EVENTS POR THE INDUSTRY
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