EIN 26-4178586

Charleston Waterkeeper

IRS 501(c) type
501(c)(3)
Num. employees
8
Year formed
2009
Most recent tax filings
2024-12-01
Description
Charleston Waterkeeper protects, promotes, and restores the quality of Charleston's waterways. Their mission is to safeguard and restore waterways for future generations through boots-on-the-water stewardship work and data-driven clean water policy campaigns. They monitor the Ashley/Cooper River basin, investigate pollution incidents, support research activity, and educate communities about water pollution issues. Their headquarters are located in Mount Pleasant, SC.
Total revenues
$746,260
2024
Total expenses
$497,059
2024
Total assets
$1,053,302
2024
Num. employees
8
2024

Program areas at Charleston Waterkeeper

Programmatic efforts are focused on the asheley/cooper river basin. Our programs monitor local waterways, investigate pollution incidents, promote habitat restoration and support scientific and other research activity. This is accomplished by three primary activities: 1. Water quality testing: we test water quality to drive action that protects and restores your waterways so you and your family can enjoy the water without pollution.2. Clean water advocacy: we take action to hold polluters and your elected leaders accountable for following the law so your waterways have a strong voice for protection.3. Habitat restoration: we create opportunities for you to build oyster reef, plant marsh grass, clean oyster shell, and remove plastic debris to restore your marshes and creeks so they can protect all of us from climate change.

Who funds Charleston Waterkeeper

Grants from foundations and other nonprofits
GrantmakerDescriptionAmount
Fidelity Investments Charitable Gift FundFor Grant Recipient's Exempt Purposes$79,650
The James J and Joan A Gardner Family FoundationExempt Purpose of Organization$25,000
Phicas Foundation TrustEnvironment$25,000
...and 13 more grants received

Financials for Charleston Waterkeeper

RevenuesFYE 12/2024
Total grants, contributions, etc.$699,319
Program services$0
Investment income and dividends$47,501
Tax-exempt bond proceeds$0
Royalty revenue$0
Net rental income$0
Net gain from sale of non-inventory assets$0
Net income from fundraising events$-13,592
Net income from gaming activities$8,337
Net income from sales of inventory$4,695
Miscellaneous revenues$0
Total revenues$746,260

Organizations like Charleston Waterkeeper

OrganizationLocationRevenue
Delaware Center for the Inland BaysRehobeth Beach, DE$3,535,864
Flint RiverkeeperAlbany, GA$710,501
San Joaquin River Parkway and Conservation TrustFresno, CA$3,238,571
Sound RiversWashington, NC$1,127,285
Northern Plains Resource CouncilBillings, MT$2,669,533
Clark Fork CoalitionMissoula, MT$2,500,027
Friends of Casco BayPortland, ME$1,624,177
Save the RiverClayton, NY$483,640
Environmental Defense Center (EDC)Santa Barbara, CA$3,726,754
The Potomac ConservancyBethesda, MD$2,484,325
Data update history
August 24, 2026
Received grants
Identified 5 new grant, including a grant for $12,000 from Logan Iii Charitable Fund 610001380
April 21, 2026
Received grants
Identified 10 new grant, including a grant for $25,000 from The James J and Joan A Gardner Family Foundation
January 16, 2026
Received grants
Identified 2 new grant, including a grant for $37,407 from Coastal Community Foundation of South Carolina
September 7, 2025
Received grants
Identified 3 new grant, including a grant for $22,000 from Logan Iii Charitable Fund 610001380
July 29, 2025
Posted financials
Added Form 990 for fiscal year 2024
Nonprofit Types
Social advocacy organizationsEnvironmental organizationsCharities
Issues
Land and water conservationEnvironment
Characteristics
Legally formed as corporationPolitical advocacyLobbyingFundraising eventsState / local levelEndowed supportCommunity engagement / volunteeringTax deductible donationsAccepts online donations
General information
Address
514 Mill St Suite E
Mount Pleasant, SC 29464
Metro area
Charleston-North Charleston, SC
County
Charleston County, SC
Website URL
charlestonwaterkeeper.org/ 
Phone
(843) 906-7073
IRS details
EIN
26-4178586
Fiscal year end
December
Taxreturn type
Form 990
Year formed
2009
Eligible to receive tax-deductible contributions (Pub 78)
Yes
Categorization
NTEE code, primary
C32: Water Resource, Wetlands Conservation and Management
NAICS code, primary
813312: Environment, Conservation, and Wildlife Organizations
Parent/child status
Independent
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