Industry Insights


The EPA’s National Enforcement Initiative: Keeping Raw Sewage and Contaminated Stormwater Out of Our Nation's Waters aims to address combined sewer overflow (CSO) and sanitary sewer overflow (SSO) violations and monitor the progress of the long-term improvements agreements with wastewater agencies. According to the recent 2017 status of civil judicial consent decrees addressing combined sewer systems, 36 agencies on the list comprise a combined estimate of $31 billion required investment to reduce over 600 million pounds of pollution from 131 billion gallons of untreated sewage discharges to the receiving water bodies. Nationwide, EPA estimates an investment of $150 billion before 2025 with an estimated available funding of only $45 billion. This leaves a $105 billion investment gap.

Public perception of Infrastructure is too often limited to roads, bridges, mass transit, and water supply or safe drinking water. With 800,000 miles of public sewers across the country, investment in wastewater infrastructure that is invisible to the public, is equally important.

As wastewater industry professionals and stewards of the environment, it is imperative that we take every opportunity to engage in forums to educate the public about the importance of fixing the deteriorating infrastructure below our feet. The cost of rate increase should be a preference over the cost of a catastrophe to keep our wastewater infrastructure current and our waters clean.

Rizwan Hamid, PE is the principal engineer and president of Aqualyze

Insight Archives

September 2017

Aqualyze Insights


Seattle Public Utilities (SPU) recognized Rizwan Hamid as the “Minority Business Enterprise Champion” at their Annual Consultant Forum held at the City Hall on February 21, 2018. This recognition was for outstanding consultant inclusion, teaming, mentoring and providing sub-consultant opportunities. We look forward to continuing putting together winning teams on public works projects.


We are proud to introduce our new hires, Anna Marburg and Maryam Soltani.

Anna Marburg Anna earned her PhD from the University of Wisconsin, Madison in 2006, studying Landscape Ecology. She developed her hydraulic modeling and GIS skills working on the Christchurch, NZ earthquake recovery from 2011-2014. Anna is also a certified floodplain management (CFM) professional with 3 years of related experience. In her current position as a Senior Scientist, Anna has been actively involved in project work related to stormwater modeling and planning, GIS analysis and mapping, and report writing. Outside of work, Anna enjoys hiking and gardening.

Maryam soltani Maryam brings 5 years of civil engineering experience in water network infrastructure projects. Maryam holds a MS degree in Civil Engineering from SBU, Tehran, Iran. In her current position as a Project Engineer, Maryam has been working on stormwater, wastewater, and green stormwater infrastructure (GSI) modeling, and flow and rainfall data analysis. Maryam enjoys photography in her free time.


Aqualyze has been providing the Seattle Public Utilities (SPU) with modeling services since 2008 and has been the prime consultant for the Modeling On-Call contract since 2014. In 2017 SPU selected Aqualyze and its team of sub-consultants to continue these services for up to 5 more years. We look forward to this successful partnership in the future.