We are water resource specialists

Water nourishes our families, powers our schools, hospitals, and local businesses, and provides critical habitat for plants and wildlife. Since 2005 PG has been deeply committed to supporting state and federal agencies across the water sector to protect and restore this valuable resource.

PG Environmental has integrated as a division within ERG as of January 1, 2024. PG and ERG have operated as sister companies for a decade, supporting socially beneficial work nationwide to yield improvements in the environment and public health.

This strategic shift expands the range of services offered, enhances capacity, improves our operations, and provides additional opportunities for staff. One thing that hasn’t changed – PG’s technical team continues to work alongside our ERG colleagues to provide high-quality, impactful work for customers across the country. To read more about this transition, click here.

We offer professional services in

  • NPDES Permitting

    PG has provided extensive National Pollutant Discharge Elimination System (NPDES) program support to multiple states and EPA, drafting over 1,000 permits spanning all aspects of the NPDES universe, including publicly owned treatments works, industrial facilities, industrial and construction stormwater, CAFOs, and MS4s. We have drafted permit packages, responded to public comments, provided expert witness testimony, developed implementation procedures, and delivered tailored on-site training. PG’s permitting experts can help optimize the NPDES process at the federal, state, or tribal level to reduce backlogs and help ensure timely issuance.

  • Compliance & Enforcement

    PG’s credentialed inspectors have reviewed hundreds of facilities, systems, and programs across the country for compliance with various regulatory programs (e.g., Clean Water Act, Safe Drinking Water Act, Oil Pollution Act). We have assessed combined and separate sanitary sewer systems, construction sites and industrial facilities, MS4s, industrial pretreatment programs, and CAFOs—not to mention countless major and minor NPDES dischargers. PG senior professionals are also uniquely qualified to support Clean Water Act enforcement efforts based on decades of real-world experience and extensive, detailed knowledge of water quality programs and their regulated communities. That’s why, for a variety of complex and nationally significant cases, U.S. EPA and the Department of Justice have frequently accessed our team to build cases, serve as expert witnesses, and support negotiations and settlement discussions. From routine site visits, diagnostic audits, and report submittal reviews to infrastructure analysis/cost estimation and monitoring/modeling to quantify water quality impacts, PG’s highly seasoned team supports a broad range of compliance and enforcement needs.

  • Ecological Monitoring & Assessment

    PG scientists design, execute, and manage projects that require an intimate understanding of the complex interactions between water and the environment. Our team has performed hundreds of assessment and monitoring activities designed specifically to inform clients of the ecological integrity of their resources. We specialize in aquatic sampling and monitoring, fish and macroinvertebrate sampling, wetlands assessments, Waters of the United States jurisdictional determinations, field surveys, and biotic assessments and evaluations. For projects big and small, PG leads expert water quality and ecological assessments across all types of U.S. waters and habitats, providing data and information that is a critical foundation for subsequent environmental protection efforts.

  • Drinking Water

    Drinking water safety is a top priority for PG and an area of growing focus for our customers. Our team of sampling technicians are well-versed in collecting samples at various points in public distribution systems, working with community stakeholders, and coordinating logistics to ensure sample integrity.  We can evaluate a system’s infrastructure, treatment, distribution, and storage, as well as facility operations and management, to help maintain public health and assess compliance with federal regulations.

  • Watershed Assessment & TMDLs

    PG scientists and engineers use data analyses, geographic information systems (GIS), and computer modeling, among other tools, to characterize and understand our watersheds. We assess waterbodies using a scientifically-sound approach that considers all possible sources and conditions influencing water, sediment, and tissue quality. Our team has evaluated hundreds of waterbodies, including efforts conducted as part of total maximum daily load (TMDL) projects, informing 305(b) reports and 303(d) listing decisions, monitoring recommendations, and implementation planning, including best management practice (BMP) selection. When completing TMDLs, PG professionals build on these assessments to develop the linkage between sources and water quality standards and to calculate existing loads and the loading capacity to attain applicable standards. We routinely combine these evaluations with our other service areas for a data-driven and comprehensive approach to improving water quality across all types of U.S. waters. PG’s experienced, thoughtful, and creative team helps our clients visualize, quantify, and communicate watershed conditions and impacts to pollutant loads associated with changes in land use, climate, and implementation activities, establishing a defensible foundation for their management decisions.

  • Nonpoint Source Program

    PG’s team of scientists and policy analysts supports regulatory partners in addressing stormwater runoff in urban and agricultural areas across the United States. Using both traditional and innovative approaches, we develop nonpoint source control solutions to mitigate the impact of this significant source of water quality pollution, including policy frameworks and program planning in accordance with Clean Water Act section 319 requirements. We also help our customers develop regulatory measures for nonpoint source concerns that are not adequately addressed through voluntary programs. Those solutions include development of full regulatory programs, draft code language, and land lease agreements. Regardless of approach, we work collaboratively with the customer and their agency partners throughout the process to identify the best option to fit local needs.

  • Water Infrastructure Engineering

    PG offers a wide range of water infrastructure and engineering support for our EPA and state partners. Improvement to water infrastructure is a top priority for communities and regulatory agencies throughout the U.S., and it is central to many of PG’s activities. Our team of engineers and scientists have engaged in significant efforts to identify opportunities for infrastructure enhancements through project design review, site assessments, long-term planning efforts, and consent negotiations. Whether considering gray, green, or something in between, our goal is to identify reliable, cost-effective approaches that reflect local priorities.

  • Regulatory & Policy Analysis

    PG offers expert knowledge to support sound regulatory and policy decision-making for successful implementation of Clean Water Act programs. We have evaluated treatment technologies and conducted cost-benefit/regulatory impact analyses; supported development of national technology-based effluent limitations, guidelines, and standards; developed TMDL implementation tools; and assessed climate change impacts. Our team provides the analytical basis for new or revised environmental policies and regulations at all levels of government.

  • Public Funding Program Support

    At PG, we are committed to maximizing the benefit of public dollars. Our team of analysts and engineers have conducted thorough proposal reviews for infrastructure projects to evaluate feasibility and assess stakeholder and environmental impact. We have also reviewed grant funding expenditures on drinking water, wastewater, and other environmental projects across the country to ensure responsible fund management. In the office or field, PG helps deliver swift and successful project outcomes to local communities.

  • Training

    Strengthening the knowledge and skills of both new and experienced agency staff has been a key strategy for many of PG’s federal and state customers. In support of these capacity-building initiatives, we have designed and delivered training for NPDES inspectors and permit writers, provided curriculum development support to in-house agency training programs, and created guidance and tools to support water quality professionals in doing their jobs. PG is particularly adept in tailoring our materials and approach to match the audience and local needs.

  • Climate Resilience

    The climate is changing, and federal and state agencies must develop plans, consider community needs, and design infrastructure with these changes in mind. PG scientists and engineers help clients develop and implement projects to evaluate risks and vulnerabilities to climate change and design climate adaptation solutions that reduce greenhouse gas emissions and increase resilience to natural hazards that are projected to intensify due to climate change. Our team helps clients solve water resource challenges through holistic, integrated approaches to ensure safe and reliable water resources for future generations. We work collaboratively with state and state and federal agencies to identify strategies that best align with their communities and goals. We can also help plan, assess, communicate about, and support the implementation of more visible, dedicated adaptation or mitigation projects that aim to enhance water security, sustainability, and resilience.

  • Technical Assistance

    Our team supports federal and state-sponsored technical assistance (TA) programs to address water infrastructure needs and compliance issues in communities across the country. Many of these efforts are with smaller, under resourced communities that need additional assistance with technical, managerial, or financial aspects of their programs. Planners, scientists, operators, engineers, and finance specialists collaborate to provide the support needed to address the specific needs within a community.

See some of our work

Here’s a small sample of some of the things we’ve been up to recently.

A series of beige groundwater well pumps at a water facility under a clear blue sky.

Protecting Groundwater through Technical Review of Class VI UIC Permit Applications

U.S. EPA Headquarters

Image of wastewater outfall adjacent to a waterbody lined by a rocky embankment with bare trees in the background.

Reducing Sewer Overflows through Flow Monitoring and Updates to Hydraulic Model

U.S. Department of Justice

An aerial shot of a landscape in low light, bisected horizontally by a tree-lined river and vertically by a paved road dotted with orange streetlights and running through a town at the base of a mountain.

Building Long-Term Resilience through Hazard Mitigation and Climate Adaptation Planning

Massachusetts Emergency Management Agency

Marshy wetlands with aquatic vegetation growing throughout and a thick treeline in the backgorund along the water's edge under an overcast sky.

Analyzing Pollutant Source Loading and Permitting Approaches in the Chesapeake Bay

U.S. EPA Region 3

Two people in white protective suits and blue gloves kneel with their testing equipment in front of a brick wall and insert a plastic tube in a vertical white pipe emerging from snow-covered ground.

Mitigating Virus Transmission through an Innovative Wastewater-based Surveillance Program

New Mexico Environment Department

Interior of a drinking water treatment plant with a row of white, blue, and green vertical pipes and tiled floor.

Performing Full-scale and Rule-specific Evaluations of Drinking Water Facilities

Multiple Federal and State Regulatory Agencies

An ocean wave breaks over a rocky coastline, with vibrant low-growing plants in the foreground and bright white clouds overhead.

Developing Waikele’s Watershed TMDL and Implementation Plan

Hawaii Department of Health

Aerial photo of several damaged boats are strewn across the landscape, surrounded by floodwaters following a severe storm.

Engaging Coastal Managers to Assess Resilience Financing Gaps

National Oceanic and Atmospheric Administration

Overhead image of wastewater treatment facility adjacent to a river lined by trees.

Mitigating Discharge Exceedances through Holistic Evaluation of Collection System and Treatment Plant

U.S. Department of Justice

Screenshot of slide from MS4 inspector training featuring a national map that shows the locations of regulated MS4s.

Building the Knowledge and Skills of NPDES Inspectors and Enforcement Staff

U.S. EPA Regions and Multiple States

Aerial photo of wastewater facility in a field with several cylindrical and rectangular treatment tanks and buildings all connected by paved roads and paths.

Applying Engineering Expertise to Inform Infrastructure Funding Decisions

U.S. EPA Headquarters

A man stands on the sandy beach casting a fishing line into a large, still body of water; a developed shoreline dotted with trees is visible in the distance.

Addressing Legacy Pollutants through TMDL Development

U.S. EPA Region 9

Jockeys race several horses on a sandy track with a large digital screen televising the action in the background among several mature trees.

Identifying Tailored Wastewater Management Approaches to Protect Public Health

U.S. Department of Justice

An instructor stands in a paved lot surrounded by green trees and faced by several people. Most wear high-visibility clothing, and one of the participants is also wearing a white hardhat.

Developing a Series of Water Quality Training Materials for State Staff

Arizona Department of Environmental Quality

A person crouches next to a deep, round hole with the soil sample on a blue tarp to the left of the hole and a shovel and other tools to the right. The person holds an identifying sign.

Collecting Soil and Vegetation Data to Inform Land Management

Bureau of Land Management

Water flows through a concrete conveyance in an urban setting spanned by a bridge in the background with skyscrapers visible in the distance.

Mitigating Contaminated Transboundary Flows in the Tijuana River Watershed

U.S. EPA Region 9 and Headquarters

An aerial shot of a person in a blue shirt bending over in a shallow waterbody with a floatation device for sample collection tethered to his waist.

Engaging Recreational Water Users and Collecting Data on Algae Growth

U.S. EPA Region 3 and Multiple States

A shallow stream flows through a wooded rolling landscape with evergreens, with white froth where the water passes an over an exposed rock. There is a blue sky overhead with wispy clouds.

Assessing Streamflow Duration to Support Jurisdictional Determinations

Army Corps of Engineers, U.S. EPA Headquarters

A yellow backhoe is parked at an active worksite next to a trench in the ground where new water lines will be laid. Three men in safety vests and hardhats stand nearby with a parking lot in the background and a blue sky overhead.

Creating Resources to Help Communities Access Water Infrastructure Funding

U.S. EPA Headquarters

Blue and silver pipes at a water pumping station are pictured in the foreground as an operator makes adjustments through a square gray interface affixed to the far wall.

Delivering Hands-on Compliance Assistance to Rural Water Systems

U.S. EPA Headquarters

Several surfers floating on their boards in the bright blue ocean with clear skies overhead; in the background is a verdant mountain with several highrise buildings along the coastline.

Supporting Hawaii Nonpoint Source Regulatory Program Development

Hawaii Department of Health

Detail of cover page of the National Water Reuse Action Plan, Collaborative Implementation (Version 1) document, released February 27, 2020. The cover includes a water recycling logo and several pictures of reuse activities.

Increasing Community Resilience through Water Reuse

U.S. EPA Headquarters

Detail of example slide from hazard mitigation planning training module. Five light blue boxes that are stacked vertically describe water quality programs. Collectively, these feed into the light green box labeled “Agency Coordination to Integrate Water Quality Risks, Goals, and Action Items into an HMP.” Examples of Water Quality and Hazard Mitigation Professionals are listed in 5 green ovals within this box.

Creating Training Materials on Green Infrastructure for Hazard Mitigation

U.S. EPA Region 3

A man in a yellow safety shirt cleaning a walkway at a wastewater plant aeration basin. Several long pipes line the edges of long brownish basins. A view of a cloudy day looking towards a horizon with big tanks and cranes.

Revising the NPDES Permit Application Forms to Reflect Public Input

U.S. EPA Headquarters

Sunrise at your back at the edge of a pond with a large tree on a lush green bank, surrounded by purple wildflowers. Some homes off in the distance.

Exploring Alternatives to TMDLs

U.S. EPA Region 1

Satellite view of swirling blue green algae encompassing the area closest to the coast of a city in the open waters of a deep blue bay.

Researching HABs Disinfection Byproducts

U.S. EPA Headquarters

Stormwater flowing towards you down a tiered concrete channel through a grassy area.

Helping Communities Plan for Long-Term Stormwater Management

U.S. EPA Headquarters

A dark river with a still surface flows at the base of tall rocky banks in an arid landscape with a reddish mountain range in the background under clear blue skies.

Developing and Populating a Statewide TMDL Database

Arizona Department of Environmental Quality

Instructor stands in front of screen with presentation materials in a large, wood-paneled conference room facing several rows of long tables with seated participants taking notes.

Facilitating Delivery of the NPDES Permit Writers’ Course

U.S. EPA Headquarters

Looking up at the belly of a large grey water tower amid blue skies on a sunny, clear day.

Assessing Drinking Water Safety in Native American Communities

U.S. EPA Region 9

A skyline made up of buildings in the distance with a control tower standing at the edge of a lake. The sky is cloudy, but the water is calm.

Addressing Nonpoint Source Pollutants in Massachusetts

Massachusetts Department of Environmental Protection

Holding Quagga/zebra mussels in the fingers of a hand. Small grey and brownish shells, one to one and a half inches in length.

Assessing a Pipeline and Potential Effects on Biota in the Great Lakes Area

U.S. EPA Headquarters

Multiple people sitting in a meeting room in a circle, water bottles and laptops on the tables and handwritten notes lining the walls.

Reimagining Stormwater Permitting and Program Approaches

U.S. EPA Region 9

A grey concrete pipe exposed on the coast of a Hawaiian island. Some overhanging tree above looking out to the horizon on a misty day.

Developing Asset Management Program Capabilities in Hawaii

U.S. EPA Region 9

An image of Hawaii taken from space, depicting the developed coastline and the surrounding deep blue seas with just a few small white clouds over the scene.

Supporting Keehi Lagoon TMDL Development

Hawaii Department of Health

Standing on the bank next to a gear packed raft. Two people prepare to take samples on a free-flowing section a light brown colored river.

Evaluating the Impacts of the Gold King Mine Spill

U.S. EPA Region 8

Fingers gently holding a live sunfish with red and green scales along a metal ruler on a wooden board.

Monitoring the Health of our Nation’s Water Resources

U.S. EPA Headquarters

A person in the distant right stands in a plant-filled pond holding a piece of field equipment. A green forest is visible in the background with blue, partly cloudy skies.

Reducing Impacts from Excessive Nutrients

U.S. EPA Headquarters and Multiple States

A group of people standing in a parking lot on a sunny day. The group is congregated around a storm drain, with one person pointing down to it. A service truck is parked in the background.

Strengthening Puerto Rico’s MS4 Program

U.S. EPA Region 2

Standing at a stream flowing into the ocean on the coast of a Hawaiian island. A rocky coastline contrasts with the blue of the sky and ocean. A large, steep cliff meets the ocean in the background on the left.

Analyzing Economic Impact of Proposed Water Quality Regulations

U.S. EPA and Multiple States

An overhead view of a pipe galley in a concrete pit with grey piping, valves, and pumps. A spare pump sits on the floor next to a person in a yellow safety vest and hardhat preparing to replace it. Some grey scaffolding is disassembled on the floor to the left.

Upgrading Water Infrastructure in Guam

U.S. EPA Region 9

A person wearing a hat, blue and white plaid shift, and blue rubber gloves works on well plumbing.

Evaluating the Safety of Domestic Water Wells

Agency for Toxic Substances and Disease Registry (ATSDR)

An offshore oil rig stands above the ocean surface while a helicopter flies above and to the right. It is a clear, sunny day with a faint mountainous coastline visible in the distance.

Protecting California Coastlines from the Impacts of Offshore Drilling

U.S. EPA Region 9

A layered map of Los Angeles County, California, is color coded for different soil types. The hydrology manual from which the map is sourced is visible in the background.

Developing More Effective Regulations through GIS Analysis

U.S. EPA Region 9

People wearing high visibility safety vests and hard hats gathered around a blue tent shelter on an overcast day. The area is grassy and lightly forested, with pine trees in the distance.

Building Community Capacity for Stormwater Management

U.S. EPA Region 3

An overhead view of an open-air round clarifying tank at a wastewater treatment facility on a clear day. With the opening at ground level, the tank is surrounded by handrails and bisected by a catwalk that leads to a small red shed. The tank is located in a grassy elevated coastal area overlooking the ocean, with a cliff visible in the back left.

Streamlining Clean Water Act Permitting Processes

U.S. EPA Regions and Multiple States

An inspector stands in a large parking lot in a light rain. He is holding a fiber optic camera and wearing a yellow high-visibility vest over a blue jacket with the hood up. A few white work vehicles are parked in the background.

Ensuring Water Quality through Environmental Inspections

U.S. EPA Regions and Multiple States

Looking down toward a concrete stormwater catchment structure with brown water pooling at the bottom. With angular concrete towards the back and a half dome slope in the front, the basin slows the drainage from an incoming metal pipe.

Enhancing Environmental Compliance in Arizona

Arizona Department of Environmental Quality

A crowd of people dressed in business attire with lanyards around their necks gather together in the foreground to pose for a photo. They are standing in front of EPA’s tall exhibit booth, featuring blue and white informational signage inside a convention hall.

Fostering Innovation in the Water Sector

U.S. EPA Headquarters

A view of Chesapeake Bay standing from shore and looking out. A grassy area in the foreground includes a walkway going out to a boat dock. The silvery water of the bay stretches off into the distance, while large white tanks and an industrial area line the left banks.

Improving Water Quality in the Chesapeake Bay Watershed

U.S. EPA Headquarters and Multiple States

Looking down at a storm drain in a parking lot. It is surrounded by sand and a rainbow-colored oil sheen flowing into it.

Helping the State of Virginia Implement the Chesapeake Bay TMDL

U.S. EPA Region 3

People dressed in green camouflage with hard hats are building a foundation, directing the flow of concrete out of a grey pumping hose hanging from above. A pile of bricks is visible in the background in front of a white and green exterior wall.

Assessing Environmental Impacts of Development Projects

U.S. EPA Headquarters

View looking down towards the deep blue ocean on a calm, partly cloudy day. A section of lush green coastline sticks out into the ocean from the upper right side of the photo.

Improving NPDES Data Management in California

U.S. EPA Headquarters and the State of California

An environmental field technician wading in a shallow, brown stream holding a flow measuring device, wearing a life jacket, hat, and sunglasses. A measuring tape is stretched across the stream, which flows through a forested area with leaves on the ground.

Providing Jurisdictional Waters Support for EPA

U.S. EPA Headquarters and Regions

Looking out of a windshield, driving on a busy highway towards the city in a rainstorm. High-rise buildings line the horizon as they stick up and disappear into the clouds. All the other vehicles have their headlights on to see through the daytime fog and rain.

Reducing Pollution from Urban Stormwater Runoff

U.S. EPA Regions and Multiple States

A stack of turquoise PVC water main piping still bailed together from transport. With the open ends facing towards you, the mid-day sun highlights the blue color.

Reviewing Public Infrastructure Funding Proposals through WIFIA

U.S. EPA Headquarters

A person in a yellow safety vest and hard hat lays down on the right, watching an excavator dig a trench for a water pipe. On the left the large, yellow excavator arm extends down into the trench. In the distance, the rest of the work crew is connecting pipe as the trench gets opened and graded.

Supporting Responsible Grant Management

U.S. EPA Headquarters and Regions

An inspector walking inside a building wearing a white hardhat and looking down at a chemical containment area beneath a fifty-gallon drum. The drum is sitting in front of a grey tank marked “Selector Tank Non-Hazardous.” The green floor has white residue around the yellow plastic containment area.

Promoting Safe Industrial Wastewater Pretreatment Processes

U.S. EPA Regions and Multiple States

A large brown steel drainage pipe discharging into a stream surrounded by grasses. Light brown water is rippling out of the pipe and meeting the receiving water.

Training Permit Writers on Mixing Zone Policies in EPA Region 9

U.S. EPA Regions 1 and 9

View more projects

Singular focus. Unparalleled expertise.

The best support, from a team you can trust.

We work with federal and state agencies to protect and restore our nation’s water resources. Our unyielding commitment to our regulatory partners and our drive to provide the highest-quality service in the business are reflected in our governing philosophy: Be a good person and do good work.

This is exemplified by our core values, which include:

Customer-Centric. We have the best interest of our customers in mind, not just our own. We prioritize “doing the right thing” over seeking profits. We strive to build relationships with our customers and help enable success in their vision.

Constant Learner. We are eager to expand experiences/capabilities, adapt, and grow. We are willing and capable to be flexible in applying our skillsets. We seek the answer by asking questions when we don’t know. We are willing and able to take constructive criticism and make improvements.

Good Communicator. We engage in proactive communication with our internal team and customers. This includes being responsive to requests, forecasting issues, and doing our best to keep the appropriate people in the loop and up to speed.

The Finisher. We have a high level of attention to detail and optimize work products for their intended use (externally or internally). We create deliverables that are truly ready for the customer. We do what it takes to get the work done.

True Professional. We are trustworthy and reliable. We prepare and follow through. Our colleagues and customers can depend on us. We take responsibility when appropriate (don’t hide; communicate).

Good Colleague & Ambassador. We are good representatives for our company in everything we do. We are respectful of our colleagues, customers, and others we interact with. We seek to understand the perspectives of the partners and communities with which we work and can put ourselves in “others’ shoes.” We promote and recognize principles of fairness, equity, and social justice in the work we do, partnerships we foster, and culture we value both within and outside of our organization.

  1. Unparalleled Expertise

  2. Singular Focus

  3. Quality Products

  4. Great Rates

  1. Provide unparalleled technical expertise.

    We’re able to recruit—and keep—the highest caliber water quality specialists because they share our passion for protecting water quality. We are proud of our staff’s longevity and our ability to bring in excellent new team members who appreciate a work environment where diversity is valued and everyone supported as their authentic self.

  2. Maintain a singular business focus.

    Our dedication to people and the planet drives us to continually pursue work at the intersection of water resource management, public health, and climate resilience. That’s how we build—and maintain—longstanding, highly successful partnerships with our customers.

  3. Deliver the highest quality products and services.

    Every product we deliver comes with our unfailing attention to detail and commitment to technical quality. We also embrace opportunities to innovate, working with our customers to develop new processes and programs to support their goals.

  4. Offer great rates.

    Being privately owned, we focus on our customers (not on shareholders), and that keeps our rates where we want them: highly competitive.

Our Team

The PG team is comprised of individuals that come from a variety of backgrounds. We are true professionals dedicated to addressing the full spectrum of water issues with our federal and state partners.

Jake Albright, Environmental Scientist, sits in front of a window with open blinds wearing business casual attire. Trees are showing their fall foliage in the background.

Jake Albright

Sr. Environmental Scientist, Compliance & Enforcement Practice Lead

Megan Annis, Environmental Scientist, stands outside wearing business casual attire in a grassy landscape holding a colorful bouquet of wildflowers.

Megan Annis

Environmental Scientist

James Ashby, IT and GIS Team Leader, stands outside wearing business casual attire in front of a flowering garden area and a sunlit light-colored brick background.

James Ashby

Sr. Information Technology Manager

Deniece Brooks, Corporate Controller and Human Resources Manager, stands smiling in front of a light-colored background.

Deniece B

Corporate Controller and Human Resource Manager

Tiffany Brackett, Senior Environmental Scientist, stands wearing business attire on a balcony in front of a red terracotta and white stucco structure. Palm trees are visible in the background to the right.

Tiffany Brackett

Sr. Environmental Scientist

Bob Brobst, Senior Environmental Engineer, stands in business casual attire in front of a natural background.

Robert Brobst

Principal Environmental Engineer

Natalie Brunel, Junior Environmental Scientist, stands outside wearing business casual attire in front of a leafy green background.

Natalie Brunel

Jr. Environmental Scientist

Nick Bruno, Licensed Operator, stands wearing hiking gear with a slot canyon in the background.

Nick Bruno

Environmental Specialist

Stephen Clark, Environmental Scientist, stands wearing business casual attire in front of a leafy green background.

Stephen Clark

Lead Environmental Scientist

Tammy Cohen, Senior Environmental Scientist, stands in business casual attire on a rocky beach with a water body in the background and a bright sun in the cloudless sky.

Tamira Cohen

Sr. Environmental Scientist

Dan Connally, Virginia Operations Manager and Senior Permit Writer, wades in a stream up to his knees. He is bent over with his hand in the still water, wearing chest waders and a grey tee shirt. A grassy stream bank is visible in the background.

Dan Connally

Sr. NPDES Specialist, PG Operations Manager

Christina Conrad, Jr. Environmental Scientist, poses in business attire in front of a light gray background.

Christina Conrad

Jr. Environmental Scientist

Stephanie Crabtree, SDWA Compliance Specialist, stands inside wearing business casual attire in a grayscale photo.

Stephanie Crabtree

Sr. Environmental Scientist

Chuck Durham, Principal Engineer and Senior Project Manager, stands in business casual attire in front of a light-colored brick background.

Chuck Durham

Principal Engineer, Pretreatment Practice Lead

Kiefer Fallin, Junior Environmental Scientist, stands in front of a light-colored wall in business attire.

Kiefer Fallin

Jr. Environmental Scientist

Taylor Fontaine, Environmental Scientist, stands in business casual attire in front of a sunlit leafy green background.

Taylor Fontaine

Lead Environmental Scientist

Kate Forsmark, Environmental Scientist, stands outside in casual attire in front of a snowy, forested landscape.

Kate Forsmark

Lead Environmental Scientist

Ann Foxwell, Senior Environmental Scientist, stands wearing business casual attire in front of a light brown and grey background.

Ann Foxwell

Sr. Environmental Scientist

Wesley Ganter, Founder and CEO of PG Environmental, stands in business casual attire in front of a sunlit leafy green background.

Wesley Ganter

Vice President

Adriane Garnreiter, Lead Environmental Scientist, stands in business casual attire in front of a whiteboard.

Adriane Garnreiter

Lead Environmental Scientist

Michele Glover, Accounting Administrator, stands in front of a light-colored wall wearing business casual attire.

Michele Glover

Accounting Administrator

Kaylee Hartsing, Jr. Environmental Scientist, stands wearing business casual attire in front of a leafy green background.

Kaylee Hartsing

Jr. Environmental Scientist

James Hollibaugh, Engineer, stands in business casual attire with a stream and trees in the background.

James Hollibaugh

Sr. Engineer, Infrastructure Engineering Practice Lead

Emily Isaacs, Environmental Scientist, stands outside wearing business casual attire. Trees are showing their fall foliage in the background.

Emily Isaacs

Environmental Scientist

Bobby Jacobsen, Colorado Operations Manager and Environmental Scientist, stands outside wearing business casual attire in front of a light-colored brick wall and some leafy plants.

Bobby Jacobsen

Sr. Environmental Scientist, PG Operations Manager

Sirese Jacobson, Environmental Scientist, stands outside wearing business casual attire in front of a leafy green background.

Sirese Jacobson

Lead Environmental Scientist

Karishma Kibria, Water Resources Engineer, wearing business casual attire in front of a light grey background.

Karishma Kibria

Lead Water Resources Engineer

Blue square illustration with two curvy s-shaped white lines like an abstract river form the logo for PG Environmental.

Joe Kiel

GIS Analyst

Kort Kirkeby, Team Leader, Ecological Services, stands outside wearing business casual attire in front of a leafy green background.

Kort Kirkeby

Sr. Biologist, Ecological Services Practice Lead

Lynn Kurth, Principal Scientist, stands outside wearing business attire in front of a green and red leafy background.

Lynn Kurth

Principal Scientist

Mindi Lundberg, Ecologist, stands inside in business casual attire.

Mindi Lundberg

Lead Ecologist

Sonrisa Macharia, Junior Engineer, stands wearing business casual attire in front of a leafy green background.

Sonrisa Macharia

Water Resources Engineer

Abe Margo, Environmental Scientist, stands wearing business casual attire in front of a grassy landscape with a water body visible in the distance.

Abe Margo

Ecologist

Zak Maurer-Erickson, Environmental Scientist, holding yellow field equipment and wearing a hat, jacket, and waders. A stream flowing from a pine tree covered mountain is visible in the background.

Zak Maurer-Erickson

Lead Environmental Scientist

Kelly Meadows, Senior Environmental Scientist, stands wearing business casual attire in front of a leafy green background.

Kelly Meadows

Sr. Environmental Scientist

Taylor Mears, Contracts Representative, stands in business casual attire in front of a yellow and green grassy area.

Taylor Mears

Contracts Representative

Yatasha Moore, Environmental Engineer, stands outside wearing business casual attire in front of a sunlit leafy green background.

Yatasha Moore

Sr. Environmental Engineer

Kenna Morgan, Environmental Scientist, stands outside wearing business casual attire in front of an urban park.

Kenna Morgan

Environmental Scientist

Collin Mummert, Environmental Scientist, stands outside wearing business attire in front of a leafy green background.

Collin Mummert

Lead Environmental Scientist

Rob Naeser, Senior Environmental Scientist, stands in business casual attire in front of a black background.

Rob Naeser

Principal Environmental Scientist

Danny O’Connell, Licensed POTW Operator, CWA and SDWA Compliance Specialist, in business casual attire with wooden interior paneling and a darkened window in the background.

Danny O’Connell

Principal Compliance Specialist

Blue square illustration with two curvy s-shaped white lines like an abstract river form the logo for PG Environmental.

Chris Pardo

Jr. Environmental Scientist

Hilary Rains, Environmental Scientist, stands outside in business casual attire in front of leafy green trees and a pond in the background.

Hilary Rains

Lead Environmental Scientist

Matt Reusswig, Civil Engineer, Permitting Tools, Analysis, and Cost Estimation, stands outside wearing business casual attire by a tree with a sunny, forested background.

Matt Reusswig

Sr. Water Resources Engineer

Jared Richardson, Team Leader, Oil and Gas and OPA Support, stands outside wearing business attire in front of a leafy green background.

Jared Richardson

Principal Environmental Scientist

Andy Rimelman, Junior Engineer, stands outside in business casual attire in front of a dense pine forest in the background.

Andy Rimelman

Water Resources Engineer

Jason Rose, Senior Environmental Engineer, stands in business casual attire in front of a white and green wall.

Jason Rose

Sr. Environmental Engineer

Lisa Rowlett, Administrative / Technical Assistant, stands in business casual attire in front of a yellow textured wall.

Lisa Rowlett

Administrative / Technical Assistant

Tom Rowlett, Senior Civil Engineer, stands wearing business casual attire in front of a white background.

Tom Rowlett

Principal Civil Engineer

Kettie Holland Rupnik, Environmental Scientist, stands outside wearing business casual attire in front of a hiking trail with pine trees in the background.

Kettie Holland Rupnik

Lead Environmental Scientist, Sustainable Watersheds Practice Lead

Audrey Signorelli, Senior NPDES Program Specialist, Permitting & Regulatory Support Practice Area Leader, stands in front of a light-colored wall in business attire.

Audrey Signorelli

Sr. NPDES Specialist, Permitting & Regulatory Support Practice Lead

Kevin Stockton, Environmental Scientist, stands wearing business casual attire in a grassy landscape with a line of trees visible in the distance.

Kevin Stockton

Environmental Scientist

Ali Sutphin, Environmental Scientist, stands outside wearing business casual attire in front of a leafy green background.

Ali Sutphin

Environmental Scientist

Alex Martinez, Environmental Scientist, stands outside wearing business casual attire with a sunlit tree and clear creek flowing in the background.

Alex Swain

Lead Environmental Scientist

Brooke Tobias, Junior Environmental Scientist, stands outside wearing business casual attire in front of a magnolia tree.

Brooke Tobias

Jr. Environmental Scientist

Sarah Torres, Environmental Scientist, stands outside in business casual attire in front of trees, with white siding visible in the background to the right.

Sarah Torres

Sr. Environmental Scientist

Christina Waddle, Field Ecologist, stands wearing outdoor attire in front of an orange rock formation.

Christina Waddle

Field Ecologist

Martha Williams, Contracts Manager, stands outside wearing business attire in front of a sunlit leafy green background.

Martha Williams

Sr. Contracts Manager

Contract Vehicles

We hold numerous prime contract vehicles that make it easy for federal and state customers to access our services. To view a list of clients and contract vehicles, please visit ERG’s website.

Join Our Team

We do one thing. But we do it better than anyone else. And there’s a reason that PG and ERG team members are so dedicated and enjoyable to work with—we work in a friendly, flexible, inclusive environment with customers who are committed to making the world a better place. Our colleagues are well-respected leaders in their field who provide support, mentorship, and valuable learning opportunities for new team members.

There are many exciting job announcements posted on ERG’s website, including opportunities with the PG Division for the following positions:

Mid- to Senior-level Animal Agriculture Water Pollution Control Specialist

Entry Level Environmental Scientist / Engineer

Field Ecologist (multiple)