Environmental Consultant Long Island
Phase I ESAs, brownfield remediation, SWPPP, and civil engineering for developers and municipalities. Senior-led from day one.
Phase I ESA & Environmental Services in Long Island
Envicon Group serves developers, municipalities, and institutional clients across Long Island — Nassau County and Suffolk County — with integrated environmental consulting and civil engineering. From Phase I ESAs and NYSDEC Brownfield Cleanup Program (BCP) enrollments through SWPPP compliance and construction oversight, our NY-licensed team delivers regulator-ready solutions for LIRR corridor TOD, Hauppauge industrial parks, and coastal redevelopment sites.
- NYSDEC Region 1 (Stony Brook) direct experience
- Suffolk County Dept. of Health Services (SCDHS) coordination
- Same-day site access across Nassau and Suffolk
- 100% lender approval on Long Island Phase I ESAs
Our Services
Phase I & Phase II ESA
ASTM E1527-21 Phase I ESAs and Phase II subsurface investigations with a 100% lender approval track record.
Brownfield Remediation
Full-cycle remediation from investigation through regulatory closure — brownfield redevelopment specialists.
SWPPP & Stormwater Compliance
SWPPP preparation, SPDES / MS4 permits, construction stormwater monitoring, and post-construction compliance.
Construction Oversight
On-site environmental monitoring, CAMP air quality, waste characterization, and construction compliance reporting.
Civil & Site Engineering
Grading, drainage, utilities, and site plan engineering for redevelopment and mixed-use projects.
Environmental Compliance
Permitting, agency negotiations, regulatory reporting, and audit support for developers and institutional owners.
Our Service Areas
Dedicated landing pages for each market with local regulatory context and project examples.
Long Island Regulatory & Program Fluency
- NYSDEC Region 1 (Stony Brook) — primary Long Island regulatory body
- Suffolk County Dept. of Health Services (SCDHS) water protection
- NY Brownfield Cleanup Program (BCP) & Brownfield Tax Credit
- Hauppauge Industrial Park — largest industrial park in NY State
- LIRR Ronkonkoma Hub & Nassau County transit-oriented development
- Long Island Sound watershed & SPDES stormwater compliance
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.
Local coverage
Crews already working in your county
Short mobilization distances mean faster site visits, quicker sampling turnarounds, and engineers who know the local reviewers.
Site reconnaissance
The walkthrough that sets the scope
Every engagement starts with a structured site walk so the scope, schedule, and budget reflect real conditions, not assumptions.
Frequently Asked Questions
Source: 100% lender approval across 350+ Phase I ESAs. Measured as the share of 350+ delivered ASTM E1527-21 Phase I ESAs accepted by the client's lender without rejection, 2005–present. Timeframe: 2005–present.
Explore Our Services
Every service below is available across Long Island.
Fast, defensible due diligence for banks, credit unions, and CDFIs. SBA, transaction screens, portfolio reviews, and workout risk opinions delivered to closing timelines.
Lender-ready Phase I/II ESAs with 1-week turnaround. Comprehensive due diligence that banks approve the first time.
Fast-track site cleanup with rapid turnaround on regulatory submittals. Transform contaminated properties into lender-ready assets.
Expedited permit turnaround with multi-agency coordination. Environmental permits and compliance documentation that don't delay your project.
Site development engineering with accelerated turnaround. Lender-ready geotechnical reports and permit-ready civil designs.
Real-time environmental dashboards and GIS analytics. Faster turnaround on data analysis for lender and investor presentations.
Owner's representation with rapid response turnaround. Expert guidance that keeps your project lender-ready and on schedule.
Get a Free Environmental Consultant Long Island Site Assessment
Same-business-day proposals available. No obligation.
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.