U.S. Patent No. 10,745,879 · NSF SBIR Award Winner

Higgins Environmental Associates, Inc. and the A-Pod Technology

Sustainably and permanently removing harmful algae, cyanobacteria, and excess nutrients from fresh and estuarine water bodies.

Higgins Environmental Associates, Inc. — Earth Science and LSP Services

About Higgins Environmental

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NSF SBIR Award Winner

National Science Foundation Award Winner

Honored for support from the National Science Foundation (NSF) Small Business Innovation Research (SBIR) Award for our A-Pod Technology (U.S. Patent No. 10,745,879) to sustainably and permanently remove nuisance and harmful algae, cyanobacteria, excess nutrients and cyanotoxins from fresh and estuarine water bodies.

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A Diligent and Innovative Small Firm

Most all of our business is repeat and referral-based from existing clients and their associates. We have been helping clients solve environmental challenges for 27 years now.

27 Years of Expertise
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News and Testimonials

Find out what others have to say about our service in our Downloads Section below.

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…as a daily swimmer I wanted to share what I have seen this summer in regards to water quality. With the heat and heavy rain this summer we were primed for algae outbreaks much like previous seasons. The water this summer has been crystal clear everywhere on the pond with nothing coming from the bottom to the surface. It is the first time swimming here in almost 20 years that I have seen this kind of clarity this late in the season. The A-Pods are truly amazing and a game changer for clean water!

— Concord resident and frequent pond user, July 26, 2023 · White Pond, Concord, MA

Water clarity sample demonstrating A-Pod Technology effectiveness

Water clarity sample — White Pond, Concord, MA

Services and Products

320-acre water body with HABs depicted in red — A-Pod active and passive mode deployment
U.S. Patent No. 10,745,879

A-Pod Technology

Permanent and sustainable removal of benthic and pelagic forms of cyanoHABs, nuisance algae, cyanotoxins and excess nutrients from water bodies. A-Pods are fully scalable, readily portable and can be used either actively or passively (using natural water currents; without electricity or chemicals). A-Pods work well in both small and very large water bodies (fresh and estuarine).

320-acre water body with HABs depicted in red

Frog resting on A-Pod collector in wetland — surface water quality improvement
Surface Water

Surface Water Quality Improvement Services

We can rapidly assess, mitigate, improve water quality and reduce health risks posed by toxic benthic and pelagic forms of cyanobacteria (a.k.a. cyanoHABs; harmful algae blooms) and nuisance densities of algae in water bodies.

A-Pod collector in passive mode

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Oil & HazMat

Oil and Hazardous Materials

LSP and Environmental Consulting Services including: Assessments, Senior Review, Remediation Design and Oversight. Other services and products available for assessing and improving the health and quality of soil and sediment.

Environmental site assessment

Downloads & Reports

Technical reports, proof-of-concept studies, and research publications on A-Pod Technology and water quality improvement.

2025

2025 EcoRestoration White Pond Summary

Download (PDF)
2024

2024 Nutrient Source Evaluation Stiles Pond

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2023

2023 Passive Harvesting of CyanoHABs and Tree Pollen Report

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2023

2023 Passive Harvesting of CyanoHABs and Tree Pollen — Slides (narrated version available — call us)

Download (PDF)
2021–2022

2021–2022 Passive Harvesting of CyanoHABs Using the A-Pod Technology

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Research

Passive Harvesting of CyanoHABs — Slides (narrated version available — give us a call)

Download (PDF)
2023

2023 Massachusetts Healthy Soil Action Plan — Sidebar (uncut version) by Jonathan Higgins

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Research

Heterogeneity of Phosphorus in Sediment — Paper with GIS Spatial Figures

Download (PDF)
Research

Lake Iron Nodules as Indicators of Surface Water and Sediment Quality Over Time (narrated available)

Download (PDF)
2023

2023 REBA Boston PFAS Presentation

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2023

A-Pod White Pond Aug 7, 2023 News

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Research

Could Pollen Collection Be More Important to White Pond's Health Than Sewerage?

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Proof of Concept

Upper Green Pond, Newbury, Mass. — A-Pod Proof of Concept Report

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Contact Us

Please send us an email with your contact information and message. We enjoy helping people solve both routine and complex environmental problems.

Higgins Environmental Associates, Inc.

Amesbury, Massachusetts

Higgins EnvironmentalAssociates, Inc.

Earth Science and LSP Services

Amesbury, Massachusetts

Legal

© 2026 Higgins Environmental Associates, Inc.
All Rights Reserved.

U.S. Patent No. 10,745,879

Higgins Environmental Associates, Inc. · Amesbury, Massachusetts · 978-834-9000