SCDHS Article 12 clearance, on-site septic / OWTS review, and SEQRA-driven wetlands scrutiny put Suffolk projects on a parallel environmental and permitting track from day one.
Environmental Consultants in Suffolk County, NY
Phase I ESAs & SCDHS Article 12 Permitting
- 350+Phase I ESAs delivered
- Since 2005Serving NY developers
- 30+SCDHS Article 12 approvals
Phase I ESA, SCDHS Article 12 compliance, UST closure, and NYSDEC BCP support across Suffolk County — from Hauppauge and Huntington to the Hamptons.
Environmental Consulting Expertise for Suffolk County Projects
Suffolk County covers 900+ square miles of North Shore, South Shore, and East End communities sitting atop the Nassau-Suffolk sole-source aquifer. Envicon delivers SCDHS Article 12 filings, UST closures, and NYSDEC BCP support with the aquifer protection standards Long Island regulators expect.
Our Suffolk County Services
Phase I & II ESA
ASTM E1527-21 assessments for Suffolk County transactions
SCDHS Article 12
Toxic & hazardous materials storage compliance across Suffolk
UST Removal & Closure
Sole-source aquifer-compliant tank work and remediation
NYSDEC Brownfield Program
BCP enrollment for eligible Suffolk redevelopment sites
Vapor Intrusion Testing
NYSDOH-protocol sub-slab and indoor-air investigations
Wetland & CEA Support
Freshwater, tidal, and Critical Environmental Area permitting
Contact Our Suffolk County Team
Frequently Asked Questions About Suffolk County Environmental Services
Also Serving Nearby Areas
Local delivery
What working with a regional crew looks like
Short mobilization distances mean faster site visits, quicker sampling turnarounds, and engineers who already know the local reviewers.

Step 1: Scoping call
Day 1
A licensed engineer reviews the property, your deadline, and who needs the report — lender, agency, or counsel.

Step 2: Local mobilization
Crews dispatch from the nearest office, usually on site within days rather than weeks.

Step 3: Site reconnaissance
Days 2-5
Field staff walk the site, log conditions, and interview operators so the scope reflects what is actually there.

Step 4: Sampling & analysis
Week 2
Soil, groundwater, vapor, or air data is collected and run through accredited laboratories with documented chain of custody.

Step 5: Filing & closure
We submit to the reviewing agency, answer comments, and carry the file through approval or no-further-action.
Environmental Consultant New York
See all NY service areas — NYC, Long Island, Westchester, and Rockland.
Explore hub- Lender Due Diligence
- Environmental Assessment
- Remediation & Brownfield
- Compliance & Permitting
- Civil & Geotechnical
- Digital & GIS
- Strategic Advisory
Have a Suffolk County project?
Fixed-fee proposals the same business day. Rush turnaround available.
All services available in Suffolk County
Every discipline below is delivered locally in Suffolk County, under the same senior engineer and licensed professional oversight.
- Soil Disposal & Clean Fill in Suffolk County
- Dewatering Design in Suffolk County
- Sediment & Waterfront Remediation in Suffolk County
- NYSDEC Brownfield Cleanup Program (BCP) in Suffolk County
- Site Management Plans in Suffolk County
- Waste Characterization & Disposal in Suffolk County
- Vapor Intrusion Mitigation in Suffolk County
- Civil Engineering (NY) in Suffolk County
- Geotechnical Investigation in Suffolk County
- Structural & Transportation Engineering in Suffolk County
- Flood Resilience & Climate Adaptation in Suffolk County
- Bridge Design & Rehabilitation in Suffolk County
- Construction Management in Suffolk County
- Water & Wastewater Engineering in Suffolk County
Get a Free Suffolk County Site Assessment
Same-business-day proposals available. No obligation.
Phase I ESA & Environmental Costs in Suffolk County, NY
Suffolk County Phase Is layer SCDHS Article 12 records onto the standard NYSDEC scope, which raises scope on parcels with prior industrial or agricultural use. Pricing tracks records burden and drinking-water aquifer proximity.
| Scope | Typical range |
|---|---|
| Standard commercial Phase I ESA — NJ | $2,200–$4,500 |
| Standard commercial Phase I ESA — NYC | $2,640–$5,625 |
| Phase II ESA (soil / groundwater) | $8,000–$25,000 |
Get a cost estimate for your Suffolk County, NY project
NY/NJ-specific pricing in three steps, no phone call required.
Or explore the full pricing calculator directly: Phase I ESA cost in Suffolk County.
Phase I ESA FAQs — Suffolk County, NY
Cost, scope, turnaround, and how long a Phase I ESA stays valid.
One Team. One Point of Contact. From Assessment to Closeout.
Environmental, civil, and geotechnical, coordinated under a single project manager.
Most clients receive a proposal the same business day. Field work typically begins within 72 hours of authorization.
