Phase I Environmental Site Assessment in King of Prussia, PA
King of Prussia anchors one of Pennsylvania's most active commercial and redevelopment markets, sitting where the Pennsylvania Turnpike, I-76, I-476, US 202, and US 422 converge in Upper Merion Township, Montgomery County. Property owners, developers, contractors, municipalities, and counsel working across the Valley Forge and Route 202 corridor rely on focused, locally informed environmental due diligence. Resource Renewal supports these projects through RCC's ASTM E1527-21 Phase I Environmental Site Assessment scope, layered with PA DEP Act 2 Land Recycling program support to deliver both federal innocent purchaser protections and Pennsylvania liability relief.
Resource Renewal connects three service tracks under one platform: ASTM E1527-21 Phase I ESAs and Act 2 regulatory support delivered by RCC; Phase II Site Investigations and Remedial Investigations when Recognized Environmental Conditions are identified; and full remediation and brownfield redevelopment delivered with our affiliated platform DSR. Project teams coordinate with the PA DEP Southeast Regional Office in Norristown and pursue site closure under the Act 2 Land Recycling Program toward an approved Final Report.
Why Property Owners and Developers in Montgomery County Choose Resource Renewal
Resource Renewal's headquarters at 10 Lippincott Lane sits inside the Resource Renewal Business Park, a completed brownfield redevelopment project, and a working proof point for the methodology RCC and DSR apply to client sites across Montgomery County and southeastern Pennsylvania.
- ASTM E1527-21 Phase I ESA
- PA DEP Act 2 program support
- Phase II Site Investigation
- Soil & groundwater investigation
- PA DEP Act 2 closure pursuit
- Brownfield redevelopment via DSR
- Active project work in 5 states
- 30+ years of regional project history
Environmental Context in King of Prussia and Montgomery County
Industrial and Commercial Heritage
King of Prussia grew up around the King of Prussia Inn, built as a Welsh Quaker cottage in 1719 and converted to a tavern in 1769 at the crossroads of Swedesford Road and Gulph Road. Long before the mall, Upper Merion Township was quarry country: limestone was cut and burned in lime kilns for generations, and the Pennsylvania Blue Marble known locally as King of Prussia or Henderson marble came out of veins in the same carbonate rock. Heavy industry followed — the Crater Resources quarry pits took coke plant and steel mill waste from the Keystone Coke and Alan Wood Steel operations, General Electric's Space Center ran aerospace and defense electronics work at the Valley Forge campus now operated by Lockheed Martin, and the King of Prussia Industrial Park filled in behind the Pennsylvania Turnpike and Schuylkill Expressway interchanges built in the 1950s. That layered history drives Phase I ESA recommendations today, with former quarries, dry cleaners, service stations, plating and machine shops, and solvent-using plants distributed along the US 202, Dekalb Pike, and Swedeland Road corridors.
Current Environmental Profile
PA DEP and EPA records show a dense cluster of remediation activity in Upper Merion Township, including three National Priorities List sites in the King of Prussia area: Crater Resources/Keystone Coke/Alan Wood Steel, where quarry pits were used for industrial waste disposal; Henderson Road, a 7.6-acre former waste storage, recycling, and vehicle maintenance yard operated by O'Hara Sanitation; and Tyson's Dump, an abandoned septic and chemical waste disposal site used from 1962 to 1970. Common contaminants across the area include chlorinated solvents (PCE, TCE) from dry cleaning, degreasing, and electronics work; petroleum hydrocarbons (TPH, BTEX) from service stations and underground storage tanks along the US 202 retail strip; coke plant residues and heavy metals from the quarry disposal pits; and PCBs. Carbonate bedrock and frequent sinkholes make solvent transport fast and difficult to predict, so soil vapor intrusion evaluation and carefully designed groundwater work are standard rather than optional components of Phase II scope here. PFAS screening is now routine near former firefighting training areas and plating operations.
Real Estate and Development Market
King of Prussia is an edge city of Philadelphia with roughly 24,700 residents but a daytime employment base far larger than that, anchored by GlaxoSmithKline, Lockheed Martin, and the headquarters of Nuclear Regulatory Commission Region I. Its aging 1960s and 1970s office and business park stock was losing tenants by the late 2000s, and the response has been sustained repositioning: the King of Prussia Town Center opened in 2016 as a walkable mixed-use district, the Valley Forge Casino Resort expanded, the King of Prussia mall added leasable area to become one of the largest in the country, and The Discovery Labs converted former GlaxoSmithKline research buildings on Swedeland Road into life-science lab and manufacturing space. Each of those conversions — office to residential, research campus to multi-tenant lab, surface parking to mixed-use — generates Phase I ESA transaction volume across Upper Merion, Bridgeport, Norristown, Conshohocken, Wayne, and the surrounding Route 202 municipalities.
Local Regulators, Authorities, and Stakeholders
PA DEP's Southeast Regional Office at 2 East Main Street in Norristown provides Act 2 and environmental cleanup oversight for Montgomery County, a short drive from the King of Prussia crossroads. Because King of Prussia is a census-designated place rather than an incorporated municipality, local approvals, zoning, and property records run through Upper Merion Township and the Montgomery County Recorder of Deeds in Norristown. Routine touchpoints during Phase II and remedial action work include the Township's engineering and building departments — which administer a long-standing sinkhole ordinance because of the carbonate geology — the Montgomery County Conservation District for erosion and sediment control, and PennDOT District 6 where work affects the highway corridors. Sites near the Schuylkill River, Valley Creek, or Gulph Creek often require Chapter 105 water obstruction and encroachment permitting, and Valley Creek's PCB impairment and fish consumption advisory can shape sampling and discharge decisions.
Why This Local Context Matters for Your Project
Local industrial history, the current contaminant profile, regulator office assignments, and real estate transaction velocity all feed directly into Phase I scoping decisions and downstream remediation planning. Three decades of project work across the Delaware Valley mean RCC crews already know the PA DEP Southeast Region reviewers, the typical AOC profiles encountered in the Route 202 and Schuylkill corridors, and the surrounding parcels that recur in historical use research. That institutional familiarity shortens timelines and sharpens the recommendations delivered in each report.
Environmental Services Available to King of Prussia, PA Projects
Service availability spans two connected tracks: Investigation & Compliance, including transactions, financing, and regulatory closure documentation, and Remediation & Redevelopment, including physical cleanup, environmental liability transfer, and conversion of impaired real estate. RCC and DSR jointly cover the full project lifecycle from pre-acquisition due diligence through final regulatory closure and redevelopment.
Phase I Environmental Site Assessment
ASTM E1527-21 site assessment with PA DEP Act 2 regulatory overlay for King of Prussia and Montgomery County properties.
Phase II Environmental Site Assessment
Subsurface sampling and certified laboratory analysis when RECs are identified during Phase I.
Site Investigation
Comprehensive site characterization, soil sampling, groundwater investigation, soil vapor assessment.
Environmental Remediation
In-situ and ex-situ soil and groundwater remediation, OM&M, and pursuit of regulatory closure.
Regulatory Compliance
Permitting, audits, hazardous waste management, SPCC plans, PA DEP agency liaison.
Brownfield Redevelopment
Acquisition, remediation, and redevelopment of impaired Pennsylvania real estate through DSR.
Environmental Liability Transfer
DSR-led liability transfer for owners seeking to exit impaired sites.
Landfill Closure
Closure, post-closure care, and EPA LMOP-aligned beneficial reuse options through DSR's TB2G™ model.
How Resource Renewal Serves King of Prussia, PA
Investigation & Compliance (RCC Track)
The ASTM E1527-21 Phase I ESA scope covers site reconnaissance, historical land use review, regulatory database searches, agency file reviews, and key personnel interviews. In Pennsylvania, RCC layers the federal ASTM scope with the documentation needed to enter PA DEP's Act 2 Land Recycling Program, so projects can carry federal CERCLA innocent purchaser protections alongside Act 2 liability relief. When Recognized Environmental Conditions or Areas of Concern are identified, RCC moves directly into Phase II Site Investigation and, where warranted, Remedial Investigation — coordinating sampling plans, certified laboratory analysis, and data evaluation against Act 2 Statewide Health, Site-Specific, or Background standards. Documentation is built for PA DEP Southeast Regional Office review and Final Report approval.
Remediation & Redevelopment (DSR-Affiliated Track)
Remediation capabilities include in-situ chemical oxidation, bioremediation, soil vapor extraction, ex-situ excavation and disposal, groundwater pump-and-treat systems, permeable reactive barriers, sub-slab depressurization, and long-term operations, maintenance, and monitoring (OM&M). For owners exiting impaired property, the DSR platform provides brownfield acquisition, environmental liability transfer, and full redevelopment, applied across more than 100 brownfield sites in NJ, NY, PA, MA, and OH. The Mount Holly HQ at the Resource Renewal Business Park is itself a representative example of a former brownfield converted into productive operating real estate.
Frequently Asked Questions
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Yes. Resource Renewal serves King of Prussia and Upper Merion Township as part of its southeastern Pennsylvania coverage, with RCC and DSR field crews mobilizing from the Mount Holly HQ at the Resource Renewal Business Park. Municipalities routinely served alongside King of Prussia include Norristown, Bridgeport, Conshohocken, West Conshohocken, Wayne, Radnor, Plymouth Meeting, Blue Bell, Audubon, Phoenixville, and Valley Forge.
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A Phase I Environmental Site Assessment is a documented review of a property's current and historical use, performed under ASTM E1527-21, that identifies Recognized Environmental Conditions and Areas of Concern. Typical triggers include commercial real estate transactions, lender requirements, attorney due diligence, pre-redevelopment review, and refinancing. For Pennsylvania sites, RCC pairs the ASTM Phase I ESA with the groundwork needed for PA DEP's Act 2 Land Recycling Program, so federal CERCLA innocent purchaser protections and Act 2 liability relief can be pursued together. In King of Prussia and Montgomery County, the most frequent triggers for Phase I work are office and business park repositioning, life-science and lab conversions, quarry and former manufacturing parcels, automotive and fuel storage sites, and dry cleaning locations.
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A typical Phase I ESA runs two to three weeks from authorization to draft delivery, depending on environmental database turnaround, depth of historical research, agency file review timing, and site access. RCC can accelerate timelines for time-sensitive transactions when scope and access permit. Any Act 2 documentation work is coordinated within the same engagement. Under ASTM E1527-21, a Phase I ESA is valid for 180 days, with extensions of up to one year possible if specific components are refreshed.
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When Recognized Environmental Conditions are identified, the natural next step is a Phase II Site Investigation: a defined sampling plan, certified laboratory analysis, and data evaluation against PA DEP Act 2 standards. If contamination is confirmed, RCC develops a Remedial Investigation and a remedial action plan, files a Notice of Intent to Remediate, and pursues Act 2 attainment through an approved Final Report. For owners who prefer to exit the property rather than carry it through closure, DSR brownfield acquisition and environmental liability transfer are available as an alternative path.
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DSR is Resource Renewal's brownfield redevelopment company, with experience across more than 100 brownfield sites in NJ, NY, PA, MA, and OH. DSR services include site evaluation, environmental liability transfer, and full redevelopment. DSR is a member of the EPA Landfill Methane Outreach Program and the Brownfield Coalition of the Northeast, and applies its Turn Brown to Green™ (TB2G™) model for landfill closure and beneficial reuse. EPA Brownfields Program grants and incentives may apply to qualifying King of Prussia and Montgomery County sites.
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Pennsylvania's Land Recycling and Environmental Remediation Standards Act — Act 2, at 35 P.S. §§ 6026.101 et seq. — lets a property owner select a cleanup standard and receive liability relief once attainment is demonstrated. The consultant chooses among the Statewide Health, Site-Specific, and Background standards, files a Notice of Intent to Remediate with PA DEP and the host municipality, then submits the applicable Remedial Investigation, Risk Assessment, and Cleanup Plan reports. Attainment is documented in a Final Report; PA DEP's Southeast Regional Office in Norristown reviews and approves it, and that approval is what supports transactions, financing, and redevelopment. Unlike New Jersey, Pennsylvania has no licensed site professional program, so submissions go directly to PA DEP.
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King of Prussia sits at one of the busiest highway crossroads in the region, where the Pennsylvania Turnpike, I-76, I-476, US 202, and US 422 meet, and it carries a daytime employment base far larger than its resident population. Aging 1960s and 1970s office and business park stock has been steadily repositioned into mixed-use, residential, hospitality, and life-science uses — the King of Prussia Town Center, the Valley Forge Casino Resort expansion, and The Discovery Labs conversion of former GlaxoSmithKline research buildings on Swedeland Road are the visible examples. Each of those transactions requires environmental due diligence, and the carbonate geology and Superfund legacy in Upper Merion Township mean lenders and counsel rarely accept a thin report. Activity has been particularly visible in Upper Merion, Bridgeport, Norristown, Conshohocken, and along the Route 202 corridor.
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The Resource Renewal Business Park at 10 Lippincott Lane is itself a brownfield redevelopment project that moved through the same investigation, remediation, regulatory closure, and reuse process RCC and DSR deliver for clients. It is a working demonstration that contaminated parcels can move from environmental liability to productive operating real estate when investigation, remediation, regulatory strategy, and redevelopment are executed by an integrated team. Prospective clients are welcome to walk the site as part of project scoping.
Visit Our Mount Holly, NJ HQ or Find Us Near You
The Resource Renewal Business Park
10 Lippincott Lane, Unit 1
Mount Holly, NJ 08060
For ASTM E1527-21 Phase I ESA, Phase II Site Investigation, remediation, regulatory compliance, or brownfield redevelopment support on a King of Prussia, PA project, contact Resource Renewal directly. Project work in Pennsylvania is delivered under PA DEP's Act 2 Land Recycling Program, with field crews mobilizing from our Mount Holly HQ. Call (856) 273-1009 or request a project consultation.