Hydrologics Technology Removed Biological Buildups
Novato, CA | December 5th, 2008
At our first demonstration in Novato, California, (at the old Birkenstocks factory) on December 5th, 2008, for the North Marin Water District, Hydrologics was tasked to flush a dead end 8-inch AC water main that had tested at over 3,000 HPC’s (Heterotrophic Plate Count) just prior to our Zero Discharge Flushing System demo (remember that our Hydrologics equipment was first designed to only remove sediment and particulates), so we were quite worried. The water being flushed through our Zero Discharge Flushing System equipment could be seen by all as it passed through the clear turbidity meter de-bubblier container. It was bright orange and maxed out at 147 NTUs, but within 15 minutes from the start of our flushing run, the NTUs passed down below 1 NTU and we were finishws with the flush. We received a standing ovation from all 37 attendees (which included several representatives from the California Department of Health Services). We were later informed that the end of thw flush demo HPC test came back at 6 HPCs — This meant that we could now even remove biological materials and were most efficient at flushing/re-refreshing dead-ends!
Hydrologics Technology Removed BioFilms and Solved Nitrification Issues
Hillsborough, CA | 2010
While performing three separate trials in Hillsborough, California, in early 2010 (for the California Department of Public Health) to gain approval towards our first Hydrologics truck sale; We found that Hillsborough had issues with biofilm formation that was depleting the chlorine component of their chloramine residuals. This left the free ammonia component to feed the biofilm and thus created nitrification issues. Hillsborough was only hydrant flushing to waste to rid the water of free ammonia (and they couldn’t get rid of the biofilm through hydrant flushing). To top it off, they only had so much of a purchase water allotment making hydrant flushing to waste, extremely expensive; and now that their supply was getting lower (because of the drought), things were getting worse. Note: a compounding issue was that Hillsborough is a very hilly community with no curbs and gutters and hydrant flushing was damaging lots of landscaping! Hydrologics came in and proved that we could remove biofilm more efficiently than any other type of flushing method (and while saving water). Plus we could test the water with a hand-held free ammonia meter then add just enough chlorine to kill the now exposed biofilm; and also add enough chlorine to re-combine with the remaining free ammonia to re-institute their chloramine residual. Hydrologics solved their water supply, biofilm, low residual free ammonia, and nitrification issues all at once!
Yakima, WA | 2017
We just completed a week of Hydrologics flushing up in Yakima, Washington, (for Nob Hill Water) in April. Nob hill had extremely high concentrations of biofilm, etc., on the insides of their distribution water mains. Just prior to our arrival, Nob Hill crews hydrant flushed (conventionally flushed to waste) a section of 6-inch and 8-inch AC main; then removed a short length of the same flushed main to see how well their hydrant flushing method removed the biofilm (it did not). Unbeknownst to us, we flushed the exact same section of main on our first day of our Zero Discharge Flushing System trial week. Nob Hill then removed another short length of the same main, and found that it was pristine clean (we had efficiently removed all of the Biofilm). So Nob Hill ordered a Hydrologics trailer unit that week (we built their trailer unit for delivery in July 2017).