We had the special honor in 2014 of working with Yarnell Water Improvement Association (YWIA) to assist in the recovery from the Yarnell Hill Fire of 2013.    As noted by the YWIA, they had more than $2,000,000 in damages to their water system and they have made good progress in their rebuilding efforts.  The Valentine team donated their time and energy to the YWIA to evaluate the damage and make recommendations for the design of their new water system and infrastructure.

Valentine Environmental Engineers and its employees specifically give back to communities and organizations where programs and initiatives create healthier and more sustainable water systems for everyday use, recreation, and quality of life.  “Our partnership with YWIA fits our driving force to deliver innovative water resource services that produce results now and build for a future of clean water.   It’s our vision,” says Dr. Teresa Valentine, managing principal.  “We are fortunate to share our success with organizations that make the communities we do business in a better place to work and live.”

Thank you YWIA for the Corporate Resolution of Gratitude.  We appreciate the opportunity.  It was truly a pleasure.

Corporate Resolution of Gratitude from Yarnell Water Improvement Association


Valentine Environmental Engineers have been working with the Yarnell Water Improvement Association in an effort to assess and rebuild the Yarnell water system after the tragic fires last summer.  The first step was conducting a comprehensive evaluation of all of the damage created by the fire and by the firefighting efforts.  This also included the underground damage as a result of the heavy machinery being used to fight the fire.  Valentine donated their professional services to the YWIA for this evaluation and recommendations.

You can hear more about the tragedy and the aftermath during a presentation at the AZ Water 2014 Annual Conference on May 7 at 3:00p.m.  The presentation will go through the events during and after the fire from the unique perspective of the YWIA, the destructive impact of the fire on the system infrastructure, and how the YWIA has been able to respond to the initial firefighting needs; stabilize a crippled system to prepare for residents’ return; ensure an ongoing safe, potable water supply; and engage in short and long term system assessment and recovery planning.

We look forward to seeing you there.

A statement from YWIA:

The Yarnell Water Improvement Association (YWIA) is pleased to announce acceptance of a project proposal for engineering analysis and study to be conducted by Valentine Environmental Engineers.  This project is critical for recovery of YWIA from the Yarnell Hill Fire as it provides essential analysis to identity both near and long term repair and recovery needs as well as documentation to support requests for grant and in-kind donations. 

 This Engineering Analysis and Study is funded as a result of generous financial support from BHHS Legacy Foundation which is an Arizona charitable organization whose philanthropic mission is to enhance the quality of life and health of those it serves.  This project is also funded  in part by donations received by the Yavapai County Community Foundation and deposited with the Yarnell Hill Recovery Group for the recovery of these communities from the Yarnell Hill Fire.  Valentine Environmental Engineering is also supporting this project with their in-kind donation for some of the professional services provided for this project.

 To learn more about this project please e-mail

Yarnell Water Improvement Association

PO Box 727, Yarnell, AZ  85362

(928) 427 3321


Current Consumer Confidence Report available at


UICN article

Teresa Valentine pictured on far left.

UICN is working with Valentine Engineers on some interim measures and a large master plan study.  Many Pahrump residents gave their testimony in November during a public airing regarding the Willow Creek Golf Course and its future options.   The golf course closed in 2008 and there has been no maintenance since then.  The immediate need for phase one is to remediate the ponds to provide for a reliable source of water, in addition to a clean source.  From there, they will start to discuss phase two and the hopes of a community project.

Read the whole story for Pahrump Valley Times by Mark Waite:



Teresa Valentine has been chosen to present at the AWWA 2013 Emergency Preparedness and Security Conference on September 17, 2013 at The Westin Chicago Northwest in Itasca, Illinois.  She will discuss providing a sustainable source for safe drinking water during a disaster – “Mobile Water Treatment System for Sustained Emergency Response and Recovery.”

When water supplies are compromised during disasters, risks to the US population can be best mitigated by eliminating single points of failure by implementing:

  • Stand alone treatment systems for providing water via a Mobile Water Treatment Unit (MWTU)
  • Flexible transport methods
  • Effective water treatment capability
  • Independent power source

Valentine Environmental Engineers and Hennesy Mechanical Sales presented their solution to the US Department of Homeland Security for consideration in emergency planning.  They covered all the bases for a sustainable and reliable safe drinking water source.  The benefits of the proposed MWTU provided a high level of water treatment, a scalable mobile unit for diverse populations, a standalone power source, flexible transport methods, minimal footprint of power and weight, minimal onsite maintenance during deployment, and user friendly monitoring systems.

Stay tuned for more information on the details of the design, how it can be implemented domestically, and how it can be used in regions of the world in need of safe drinking water.


What is the issue?  Living in the desert southwest, we all have an obligation to conserve water. Each and every one of us can take a small role in the water conservation effort through some simple and cost effective measures. Most of us utilize conventional salt water softeners to remove the hardness of our water. What most of us do not realize is that salt water softeners waste approximately 1600 gallons of water per household per month due to regeneration of the water softening resin with salt solution. The regeneration process also of a typical water softener discharges 600-2,000 pounds of salt each year (source: Central Arizona Salinity Study). The salt discharge enters our sewer systems, increases the salinity of our wastewater which is ultimately treated and utilized for crop and landscape irrigation, golf course irrigation, cooling towers and recharge into the aquifers. Millions of dollars is invested into removing the salinity and ultimately dealing with the brine disposal.

How can we each do our part? There are other alternatives to conventional water softening technology that reduce water usage and result in minimal to no salt discharge. These alternatives include ion exchange resins that are regenerated off site, magnetic water softener, and the like. Rayne Water Systems in Phoenix offers a local source for ion exchange resin media water softeners that can replace existing water softening technology. Rayne will replace the resin tank every 2 to 3 weeks with a new tank at a nominal cost per month. Water consumption is reduced as well as salt discharge to the sewer.

Who is doing it? Santa Clarita has already made bold steps to require all residents to remove conventional salt water softeners and other California cities are on the midst of doing so as well.

Learn more about salinity in this video, “Seeping through the Desert.”


Hydro Turbines - Energy Recovery

Hydro Turbines for Energy Recovery

The process of delivering water from the treatment plant to the customer requires a significant amount of hydraulic energy. In the process of water delivery, excess pressure often needs to be reduced or is wasted. Pressure reducing valves (PRVS), atmospheric discharge, or excessive hydraulic head are commonplace. Reclaimed water and raw water delivery systems also experience similar hydraulic conditions. This hydraulic energy can be captured with the use of hydro turbines.

How it works

As with a PRV, a hydropower turbine reduces pressure. Instead of dissipating this excess energy like a PRV, however, the turbine converts it to usable power. A pump can be operated as a turbine, referred to as “pump as turbine” or PAT, but it is not as efficient as a classical hydro turbine such as the francis-type turbine (see picture). For free discharge, a pelton or turgo type turbine is recommended with the pelton turbine most effective at high head applications. To determine the best turbine for an application and the subsequent expected return on investment, a good understanding of flow and pressure characteristics and site conditions is required.

Where to use

In many Cities throughout the Phoenix area, there are numerous examples of electrical energy that can be garnered from wasted hydraulic energy: 1) PRVs, 2) Free discharge to reservoirs, 3) Recharge wells, 4) RO brine discharge, 5) low head-high flow raw water intake, and 6) CAP/SRP canal systems.

Valentine is currently performing a study for the City of Scottsdale to investigate the use of hydro turbines within their water system.

WORLD WATER DAY – Ensure water access to all!

Water for People2_Michelle and Staci

Water for People 5K – Michelle & Staci


In honor of World Water Day, Valentine Environmental Engineers sponsored the Water for People 5K in Tempe, AZ.  Michelle Brock (engineer) and Staci Charles (marketing) had a great time during the run.  AZ Water Association and Water for People’s vision is to build a world where all people have access to safe drinking water and sanitation.  And they say it best, “because it is time to end the world’s water poverty problem once and for all.

Learn more about this great organization –




And One Drop is still celebrating…  you can watch an exclusive one-time performance of Cirque du Soleil at until March 31.  This 90-minute video is available in more than 55 countries around the world!

Share the online broadcast with a friend and watch an amazing tribute to water.  You will be helping spread One Drop’s mission to develop integrated and innovative programs aimed at improving water access and management around the world.

Check out the trailer and you won’t want to miss the video –


World Water Monitoring Day(WWMD) is an international education and outreach program  that engages the youth of the world to learn about their local water supplies and the importance of protecting them.  By engaging the children in conducting basic monitoring of their local water bodies, awareness of the importance of water is strengthened.

Visit to register your school now!


The Documentary Channel is hosting a series called the “Future of Water”. The series tells the story of how the struggle to control and use water will have great impact on political power relations world wide and influence water and peace and the destinies of countries and entire continents.

The  host of the series, Professor Dr. Terge Tvedt, has studied the role of water in history and development for years.

For more information go to


Valentine Environmental Engineers recently acquired the first grey water permit in the state of Arizona for laundry water recycling. This innovative package treatment technology, manufactured by AquaRecycle, treats the laundry discharge and recycles it back to the washing unit for use in the next washing cycle.

Water savings of 60 to 85% are realized along with energy reduction benefits. The laundry recycling will be utilized in local prison facilities with a total savings of over 40,000 gallons per day or 14.6 MG annually.

For more information on the laundry recycling technology visit or call Teresa Valentine at 480-283-8991.