Study Gauges Effectiveness of Urban Stormwater Pipe Networks
A South Korean study evaluated urban stormwater pipe network structures in terms of the relationship between peak rainfall and runoff. Researchers concluded, among other things, that looped networks implemented with affordable budgets are superior and, more generally, that network complexity is a crucial factor in reducing the risk of flooding. Click Here to view the study
What is “Porous Pavement” and How Does that Help Soils Capture and Clean Water?
Parking lots, sidewalks, streets, and rooftops: cities are full of water-shedding surfaces. The Soil Science Society of America (SSSA) Oct. 1 Soils Matter blog explains why these surfaces are problematic, and how soil can be part of the answer. Impermeable surfaces, such as asphalt and concrete, move precipitation to storm drains, and from there to rivers, lakes, and oceans. But it’s not just water. Contaminants from cars and trucks wash away, as well as salts and other pollutants. All of tha...
Pennsylvania Department of Transportation Settles EPA Multi-Site Construction-Related Stormwater Case, Protecting Water Quality in Pennsylvania
PHILADELPHIA (September 5, 2018) – The U.S. Environmental Protection Agency and the Pennsylvania Department of Transportation (PennDOT) have agreed to settle a multi-site construction-related stormwater case. The parties are resolving 209 alleged violations at PennDOT-owned construction sites arising from PennDOT’s construction contractors failing to fully implement best management practices (BMPs) as required by the Clean Water Act and Pennsylvania’s Clean Streams Law. In a consent agreemen...
Study Examines Urban Implications of Temporal Rainfall Resolution
A Chinese study examines how variability in rainfall over time affects hydrological processes and what that means for urban flood control. Among other things, results indicate that peak flooding is affected by temporal resolution of rainfall, while volume typically remains unaffected. Abstract Rainfall exhibits substantial variability, and its temporal resolution considerably affects simulation of hydrological processes. This study aims to investigate the effect of th...
States Look to Standardize Culvert Repairs
Kyungyeon Ra et al. Critical Review: Surface Water and Stormwater Quality Impacts of Cured-In-Place Pipe Repairs, Journal - American Water Works Association (2018). DOI: 10.1002/awwa.1042 An in-depth review of environmental protections for a common storm water culvert repair practice—cured-in-place pipe repair, or CIPP—has revealed differing installation practices across states, water contamination incidents in 10 states and Canada, and lack of safety data for existing installation practice...
CULTEC Filtration System Earns Environmental TECHNOLOGY Verification (ETV)
BROOKFIELD, CT – A filtration system designed by CULTEC that removes total suspended solids (TSS) from stormwater has earned performance verification from Globe Performance Solutions (GPS), Canada’s leader in Environmental Technology Verification (ETV). The CULTEC Separator™ Row designed by CULTEC is an inexpensive method of removing total suspended solids from the CULTEC chamber system and provides easier access for inspection and maintenance. Good Harbour Laborato...
New Report Reveals Cost & Water Supply Benefits of Southern California Stormwater Projects
Los Angeles, CA – Today the Southern California Water Coalition (SCWC) released a first of its kind whitepaper, Stormwater Capture: Enhancing Recharge and Direct Use Through Data Collection, assessing the cost and performance of current stormwater capture projects across the Southern California region – and what results could mean for future projects. A follow-up to a 2012 conceptual focused whitepaper, SCWC’s Stormwater Task Force analyzed data from six different water agencies on 32 acti...
NACWA Publication Addresses Stormwater Management, Key Infrastructure Issue Nationwide
Washington, DC – Recent infrastructure packages proposed by the White House and Senate Democrats note the need for more investment in Stormwater Management practices, raising awareness nationwide for greater investment in stormwater infrastructure. Stormwater discharges from municipal drainage and conveyance systems — referred to as "municipal separate storm sewer systems," or "MS4s," — are regulated across the country through National Pollution Discharge Elimination System permits under the Cl...
Presto Announces Ballast Research Performance Results
Presto Geosystems, industry-leading manufacturer of the HDPE GEOWEB® base stabilization system, has released results from rigorous track research performed to quantify the reinforcement benefit of GEOWEB-confined ballast as compared to unconfined ballast. The research initiative was a cooperative effort between Oregon State University (OSU) and the University of Kansas (KU) under the direction of Ben Leshchinsky, PE, PhD and Jie Han, PE, PhD. The results substantiate the effectiveness of GEOWEB...
CULTEC and Armtec Sign Exclusive Agreement
BROOKFIELD, CT – CULTEC, Inc. (“CULTEC”) and Armtec LP (“Armtec”) announced that an agreement has been reached for Armtec to be the exclusive distributor in Canada for CULTEC’s stormwater management products including the Contactor®, Recharger®, and CULTEC StormFilter® series of products. Armtec is very pleased to expand its stormwater management product portfolio with CULTEC’s stormwater retention/detention and infiltration chambers. With these additional products, Armtec is well positi...
Stormwater Interview with Robert Page, P.E., Vice President, HNTB
Santa Barbara County North Branch Jail Expansion
February Issue 2026
