Washington, DC · DC · Vetted Directory

Environmental Lawyers in Washington, DC

DC is the federal environmental enforcement capital. EPA headquarters, DOJ Environment and Natural Resources Division, and most major environmental trade and advocacy groups operate here, which means DC has the deepest environmental-law bench in the country. Whether you're facing an EPA enforcement action, structuring an environmental review under NEPA, or defending a CERCLA cost-recovery claim, the firms below appear at EPA and on the Hill weekly.

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When a Washington, DC business needs a environmental law lawyer

Environmental law in DC means three overlapping practices. Regulatory and compliance — advising companies on EPA permitting (Clean Air Act NSR/PSD, Clean Water Act NPDES, RCRA hazardous-waste management, TSCA chemicals, FIFRA pesticides), state environmental agency interactions, and ESG/sustainability reporting. Enforcement defense — responding to EPA and DOJ Environment and Natural Resources Division enforcement actions, including consent decrees, supplemental environmental projects, citizen suits, and criminal environmental cases. Transactional and litigation — CERCLA (Superfund) cost-recovery and contribution actions, brownfields cleanup, environmental due diligence in M&A, NEPA review of federal actions, climate litigation, and ESG-related shareholder activism.

DC's bench is unusually deep. Beveridge & Diamond is a national environmental-law boutique with its DC office at One Thomas Circle NW — Vault's #1 environmental law firm for eight consecutive years and Best Lawyers' 2026 Law Firm of the Year for Environmental Law. AmLaw 100 firms with major DC environmental practices include Covington (regulatory and enforcement), Steptoe (energy and environment), Hogan Lovells (EHS), Latham & Watkins, Sidley Austin, Hunton Andrews Kurth (with its own DC environmental practice), and Bracewell. Specialist boutiques like Marten Law and Van Ness Feldman round out the field.

DC also adds a District-specific layer. DOEE (DC Department of Energy and Environment) enforces DC environmental law: stormwater management under the DC MS4 permit, lead-paint requirements, brownfields under DC Voluntary Cleanup Program, air-quality permitting, and the DC Climate Commitment Act greenhouse-gas requirements. DC's Sustainable DC plan and the DC Clean Energy Act of 2018 impose obligations on DC-based commercial real estate (building energy performance standards, green-building requirements). A DC environmental lawyer needs to know both the federal EPA architecture and the local DOEE rules.

Firms in Washington, DC that handle environmental law

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Beveridge & Diamond, P.C.

★★★★★Chambers Band 1AmLaw boutique hourly

The national environmental-law boutique. 140+ environmental lawyers across 7 US offices, DC headquarters at One Thomas Circle NW. Vault #1 environmental firm for eight consecutive years; Best Lawyers' 2026 Law Firm of the Year for Environmental Law. Practices include EPA enforcement defense, hazardous waste, air quality, water quality, climate, products, and CERCLA. DC principals include Nessa Horewitch Coppinger, John Cruden (former DOJ ENRD AAG), and Paul Hagen.

External directory link One Thomas Circle NW, Washington, DC Vault #1 Environmental 2026
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2

Steptoe LLP

★★★★★4.8/5(175 reviews)$1,000-$1,800/hr

AmLaw 100 firm with a substantial Energy & Environment practice group at its DC office. Handles EPA enforcement defense, climate and sustainability counseling, energy regulation (FERC, NRC), and environmental aspects of M&A and project finance. Strong fit for energy and chemical-industry clients with Hill exposure.

1330 Connecticut Avenue NW, Washington, DC Chambers ranked Environment
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3

Covington & Burling LLP

★★★★★4.9/5(210 reviews)$1,400-$2,000+/hr

DC-headquartered AmLaw 50 firm. Environmental practice within its broader regulatory and policy group: EPA enforcement, climate and sustainability, ESG, NEPA, environmental due diligence on major M&A. Particularly strong on FDA-EPA crossover regulation (pesticides, biocides, animal drugs).

850 Tenth Street NW, Washington, DC Best Lawyers Environmental
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What environmental law lawyers typically cost in Washington, DC

DC environmental specialist firms charge $650-$1,250/hour at the boutique level (Beveridge & Diamond, Van Ness Feldman, Marten Law), $900-$1,800/hour at the AmLaw 100 firms (Covington, Steptoe, Hogan Lovells, Sidley Austin, Latham & Watkins). Junior associates start at $450-$650/hour at the boutiques and $600-$900/hour at AmLaw 100.

Common DC environmental flat-fee or capped-fee work: $5,000-$25,000 for Phase I/II environmental due diligence reviews on M&A, $2,500-$8,500 for EPA-permit compliance reviews, $10,000-$45,000 for NEPA environmental review of a federal action, $15,000-$75,000 for an EPA Section 309 information-request response.

EPA enforcement-defense engagements typically run $75,000-$500,000+ through resolution. CERCLA cost-recovery and contribution litigation often runs $250,000-$2,500,000+ over multi-year case timelines. Most DC environmental work is hourly; alternative fee arrangements are available for ongoing compliance counseling.

Typical turnaround in Washington, DC

Phase I environmental due diligence reports (ASTM E1527-21 compliant) typically take 2-4 weeks. Phase II investigations (with sampling) take 4-8 weeks. M&A environmental indemnity and rep-and-warranty diligence wraps in 2-6 weeks depending on portfolio complexity.

EPA permit applications (Clean Air Act PSD, Clean Water Act NPDES, RCRA Subtitle C) take 6-18 months for new sources or major modifications. EPA Section 308 / RCRA / TSCA information-request responses are typically due in 30-60 days, with extensions negotiated case by case.

EPA enforcement actions resolve in 9-24 months for civil administrative settlements. DOJ Environment and Natural Resources Division consent decrees take 12-36 months to negotiate, with public-comment periods. CERCLA cost-recovery litigation in DC federal court typically reaches trial in 2-5 years; most settle at the contribution-allocation stage.

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Environmental in Washington, DC — FAQ

What is the EPA enforcement process and how do I respond to a notice?
EPA enforcement typically starts with an information request (Section 308 Clean Water Act, Section 114 Clean Air Act, RCRA Section 3007, TSCA Section 11) demanding documents and responses within 30-60 days. Failure to respond accurately is itself a federal offense (18 U.S.C. § 1001). Following the response, EPA may issue a Notice of Violation, an Administrative Compliance Order, an Administrative Penalty Order, or refer the matter to DOJ ENRD for civil or criminal prosecution. Engage DC environmental counsel before responding to any EPA information request.
What's CERCLA and when am I exposed?
CERCLA (the Comprehensive Environmental Response, Compensation, and Liability Act, 42 U.S.C. § 9601 et seq., commonly called Superfund) imposes strict, joint-and-several, and retroactive liability on owners, operators, generators, and transporters of hazardous substances at contaminated sites. Even minor connection to a Superfund or brownfields site can trigger six-figure response-cost demands. DC environmental lawyers handle the contribution-allocation and natural resource damage assessment processes that determine each party's share.
How much does an environmental lawyer cost in DC?
Boutiques (Beveridge & Diamond, Van Ness Feldman, Marten Law) charge $650-$1,250/hour. AmLaw 100 firms charge $900-$1,800/hour. Phase I environmental due diligence reports run $5,000-$25,000 flat or capped; EPA enforcement defense engagements typically run $75,000-$500,000+ through resolution.
What is the DC Clean Energy Act and how does it apply to commercial real estate?
The DC Clean Energy Omnibus Act of 2018 requires 100% renewable electricity supply by 2032 and imposes Building Energy Performance Standards (BEPS) on commercial buildings 50,000+ square feet (extending to 10,000+ square feet over time). DOEE administers; non-compliance triggers civil penalties. DC commercial owners and developers should review BEPS compliance plans with environmental counsel during property acquisition and refinancing.
Do I need an environmental review for a federal project?
Yes, under the National Environmental Policy Act (NEPA), 42 U.S.C. § 4321 et seq. Federal actions (permits, leases, funding) generally require an Environmental Assessment (EA) or Environmental Impact Statement (EIS). Categorical exclusions apply to routine actions. The 2023 amendments to the Council on Environmental Quality (CEQ) regulations changed timelines and page limits; DC NEPA specialists track changes closely. Climate impact analysis is increasingly central.
What is the DC Voluntary Cleanup Program?
DOEE's Voluntary Cleanup Program (VCP) provides a structured, lower-risk path for owners and developers to clean up contaminated DC properties (brownfields). Successful VCP completion results in a No Further Action letter that reduces future CERCLA exposure and supports financing. DC environmental counsel guides intake, work plans, sampling, and closure documentation.
Do these DC environmental firms offer free consultations?
Boutique firms (Beveridge & Diamond, Van Ness Feldman, Marten Law) generally offer free initial scoping calls. AmLaw 100 firms offer 20-30 minute introductory calls. For urgent EPA information requests, ICE/EPA criminal investigations, or imminent administrative compliance order deadlines, most DC environmental firms accept same-day intake.

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