Exhibit 21.1

COVANTA HOLDING CORPORATION — LIST OF SUBSIDIARIES

Company Name	Jurisdiction of Incorporation
8309 Tujunga Avenue Corp.	California
AC LINES LLC	Delaware
American Commercial Lines Holdings LLC	Delaware
Bal-Sam India Holdings Limited	Mauritius
Burney Mountain Power	California
Capital Compost & Waste Reduction Services, LLC	New York
Central Valley Biomass Holdings, LLC	Delaware
Central Valley Fuels Management Inc.	Delaware
Covanta Alexandria/Arlington, Inc.	Virginia
Covanta ARC Company	Delaware
Covanta ARC Holdings, Inc.	Delaware
Covanta ARC LLC	Delaware
Covanta B-3, LLC	New York
Covanta Babylon, Inc.	New York
Covanta Bangladesh Operating Limited	Bangladesh
Covanta Berkshire Holdings, Inc.	New York
Covanta Berkshire Operations, Inc.	New York
Covanta Bessemer, Inc.	Delaware
Covanta Bristol, Inc.	Connecticut
Covanta Capital District II LLC	Delaware
Covanta Capital District LLC	Delaware
Covanta Capital District, L.P	Delaware
Covanta Cayman (Rojana) Limited	Cayman
Covanta Cayman (Sahacogen) Limited	Cayman
Covanta Company of SEMASS, L.P.	Delaware
Covanta Connecticut (S.E.), LLC	Delaware
Covanta Cunningham Environmental Support, Inc.	New York
Covanta Delano, Inc.	Delaware
Covanta Delaware Valley II, LLC	Delaware
Covanta Delaware Valley LLC	Delaware
Covanta Delaware Valley, L.P.	Delaware
Covanta Development Company LLC	Delaware
Covanta Energy (Ireland) Limited	Ireland
Covanta Energy (Thailand) Limited	Thailand
Covanta Energy (UK) Limited	UK
Covanta Energy Americas, Inc.	Delaware
Covanta Energy Asia Holdings Limited	Mauritius
Covanta Energy Asia Pacific Limited	Hong Kong
Covanta Energy China (Delta) Limited	Mauritius

Company Name	Jurisdiction of Incorporation
Covanta Energy China (Gamma) Limited	Mauritius
Covanta Energy Corporation	Delaware
Covanta Energy Group, Inc.	Delaware
Covanta Energy India (Balaji) Limited	Mauritius
Covanta Energy India (CBM) Limited	Mauritius
Covanta Energy India (Samalpatti) Limited	Mauritius
Covanta Energy India Private Limited	India
Covanta Energy International Investments Limited	Mauritius
Covanta Energy Limited	England
Covanta Energy Philippine Holdings, Inc.	Philippines
Covanta Energy Resource Corp.	Delaware
Covanta Energy Services, Inc.	Delaware
Covanta Engineering Services, Inc.	New Jersey
Covanta Essex Company	New Jersey
Covanta Essex II, LLC	Delaware
Covanta Essex LLC	Delaware
Covanta Europe Holdings S.a.r.l.	Luxembourg
Covanta Europe Engineering Limited	Ireland
Covanta Europe Operations Limited	Ireland
Covanta Fairfax, Inc.	Virginia
Covanta Five Limited	Mauritius
Covanta Four Limited	Mauritius
Covanta Frederick/Carroll, Inc.	Maryland
Covanta Funds Administration, Inc.	Delaware
Covanta Harford, Inc.	Maryland
Covanta Harrisburg, Inc.	Delaware
Covanta Haverhill Associates	Massachusetts
Covanta Haverhill Properties, Inc.	Massachusetts
Covanta Haverhill, Inc.	Massachusetts
Covanta Hawaii Energy LLC	Hawaii
Covanta Hempstead Company	New York
Covanta Hempstead II, LLC	Delaware
Covanta Hempstead LLC	Delaware
Covanta Hennepin Energy Resource Co., Limited Partnership	Delaware
Covanta Hillsborough, Inc.	Florida
Covanta Holding Corporation	Delaware
Covanta Holding Limited	UK
Covanta Honolulu Resource Recovery Venture	Hawaii
Covanta Huntington Limited Partnership	Delaware
Covanta Huntington Resource Recovery One Corp.	Delaware
Covanta Huntington Resource Recovery Seven Corp.	Delaware
Covanta Huntsville, Inc.	Alabama
Covanta Hydro Operations West, Inc.	Delaware
Covanta Hydro Operations, Inc.	Tennessee
Covanta India Operating Private Limited	India
Covanta Indianapolis, Inc.	Indiana
Covanta Insurance Holdings Corporation	Delaware
Covanta Italy Holding, S.r.l.	Italy
Covanta Italy I S.r.l.	Italy
Covanta Italy II S.r.l.	Italy
Covanta Kent, Inc.	Michigan
Covanta Lake Holding Corp.	Delaware
Covanta Lake II, Inc.	Florida

Company Name	Jurisdiction of Incorporation
Covanta Lancaster, Inc.	Pennsylvania
Covanta Lee, Inc.	Florida
Covanta Long Island, Inc.	Delaware
Covanta Madurai Operating Private Limited	India
Covanta Marion Land Corp.	Oregon
Covanta Marion, Inc.	Oregon
Covanta Mauritius O&M Ltd.	Cayman
Covanta Mendota Holdings, Inc.	Delaware
Covanta Mendota, L.P.	California
Covanta Mid-Conn., Inc.	Connecticut
Covanta Montgomery, Inc.	Maryland
Covanta New Martinsville Hydroelectric Corporation	Delaware
Covanta New Martinsville Hydro-Operations Corporation	West Virginia
Covanta Niagara II, LLC	Delaware
Covanta Niagara LLC	Delaware
Covanta Niagara, L.P.	Delaware
Covanta Oahu Waste Energy Recovery, Inc.	California
Covanta Omega Lease, Inc.	Delaware
Covanta One Limited	Mauritius
Covanta Onondaga Five Corp.	Delaware
Covanta Onondaga Four Corp.	Delaware
Covanta Onondaga Limited Partnership	Delaware
Covanta Onondaga Operations, Inc.	Delaware
Covanta Onondaga Three Corp.	Delaware
Covanta Onondaga Two Corp.	Delaware
Covanta Onondaga, Inc.	New York
Covanta Operations of SEMASS II, LLC	Delaware
Covanta Operations of SEMASS LLC	Delaware
Covanta Operations of Union LLC	New Jersey
Covanta OPW Associates, Inc.	Connecticut
Covanta OPWH, Inc.	Delaware
Covanta Otay 3 Company	California
Covanta Pasco, Inc.	Florida
Covanta Philippines Operating, Inc.	Cayman
Covanta Pinellas, Inc.	Florida
Covanta Pittsfield, LLC	New York
Covanta Power Development of Mauritius, Inc.	Delaware
Covanta Power Development, Inc.	Delaware
Covanta Power Equity Corporation	Delaware
Covanta Power International Holdings, Inc.	Delaware
Covanta Power Pacific, Inc.	California
Covanta Power Plant Operations	California
Covanta Projects of Hawaii, Inc.	Hawaii
Covanta Projects of Wallingford, L.P.	Delaware
Covanta Projects, Inc.	Delaware
Covanta Ref-Fuel Finance LLC (d/b/a Delaware United American Corp      and United American Energy)	Delaware
Covanta Ref-Fuel Holdings LLC	Delaware
Covanta Ref-Fuel II LLC	Delaware
Covanta Ref-Fuel LLC	Delaware
Covanta Ref-Fuel Management II, LLC	Delaware
Covanta Ref-Fuel Management LLC	Delaware
Covanta RRS Holdings, Inc.	Delaware

Company Name	Jurisdiction of Incorporation
Covanta Samalpatti Operating Private Limited	India
Covanta SBR Associates	Massachusetts
Covanta SECONN LLC	Delaware
Covanta Secure Services, LLC	Delaware
Covanta SEMASS II, LLC	Delaware
Covanta SEMASS LLC	Delaware
Covanta SEMASS, L.P.	Delaware
Covanta Southeastern Connecticut Company	Connecticut
Covanta Southeastern Connecticut, L.P.	Delaware
Covanta Springfield, LLC	New York
Covanta Stanislaus, Inc.	California
Covanta Systems, LLC	Delaware
Covanta Tampa Bay, Inc.	Florida
Covanta Three Limited	Mauritius
Covanta Two Limited	Mauritius
Covanta Union, Inc.	New Jersey
Covanta Wallingford Associates, Inc.	Connecticut
Covanta Warren Energy Resource Co., Limited Partnership	Delaware
Covanta Warren Holdings I, Inc.	Virginia
Covanta Warren Holdings II, Inc.	California
Covanta Waste to Energy Asia Investments	Mauritius
Covanta Waste to Energy Asia Limited	Mauritius
Covanta Waste to Energy of Italy, Inc.	Delaware
Covanta Waste to Energy, LLC	Delaware
Covanta Water Holdings, Inc.	Delaware
Covanta Water Systems, Inc.	Delaware
Danielson Indemnity Company	Missouri
Danielson Insurance Company	California
Danielson National Insurance Company	California
Danielson Reinsurance Corporation	Missouri
Dublin Waste to Energy (Holdings) Limited	Ireland
Dublin Waste to Energy Limited	Ireland
DSS Environmental, Inc.	New York
EAC Organics, Inc.	New York
Edison (Bataan) Cogeneration Corporation	Philippines
Enereurope Holdings III, B.V.	Netherlands
Generating Resource Recovery Partners L.P.	California
GOA Holdings Limited	Mauritius
Great River Insurance Company	California
Haverhill Power, LLC	Delaware
Hidro Operaciones Don Pedro S.A.	Costa Rica
Kramer Capital Consultants, Inc.	New York
LMI, Inc. d/b/a Landfill Management, Inc.	Massachusetts
Madurai Power Corporation Private Limited	India
Magellan Cogeneration, Inc.	Philippines
Mammoth Power Associates L.P.	California
Michigan Waste Energy, Inc.	Delaware
Mount Kisco Transfer Station, Inc.	New York
MSW Energy Erie LLC	Delaware
MSW Energy Finance Co. II, Inc.	Delaware
MSW Energy Finance Co., Inc.	Delaware

Company Name	Jurisdiction of Incorporation
MSW Energy Holdings II LLC	Delaware
MSW Energy Holdings LLC	Delaware
MSW Energy Hudson LLC	Delaware
MSW I Sub, LLC	Delaware
Mt. Lassen Power	California
NAICC Insurance Services	California
National American Insurance Company of California (d/b/a Contractors Business Resource)	California
Ogden Energy (Gulf) Limited	Mauritius
Ogden Energy India (Bakreshwar) Limited	Mauritius
Ogden Power Development — Cayman, Inc.	Cayman
Ogden Taiwan Investments Limited	Mauritius
OLMEC Insurance Ltd.	Bermuda
OPI Quezon, LLC	Delaware
Pacific Energy Operating Group, L.P.	California
Pacific Energy Resources Incorporated	California
Pacific Hydropower Company	California
Pacific Oroville Power, Inc.	California
Pacific Recovery Corporation	California
Pacific Wood Fuels Company	California
Penstock Power Company	California
Power Operations and Maintenance Limited	Bermuda
Recycling Industries Transfer Station, LLC	New York
Samalpatti Power Company Private Limited	India
SEMASS Partnership	Massachusetts
Taixing Covanta Yanjiang Cogeneration Company Limited	PRC
Thermendota, Inc.	California
TransRiver II, LLC	Delaware
TransRiver LLC	Delaware
TransRiver Marketing Company, L.P. (d/b/a ARCNET Marketing Company)	Delaware
TransRiver Portsmouth LLC	Virginia
TransRiver Transfer Systems LLC	Delaware
TransRiver Waste LLC	Delaware
UAH Groveville Hydro Associates	New York
UAH Management Corp	New York
Valor Insurance Company, Incorporated	Montana
Viscount Insurance Services	California