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Re: Help Please -Our pond keeps turning brown
#555687
Feb 18th a 06:51 PM
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by Tom Ryan |
Tom Ryan |
Wanted to thank everyone for the quick reply, and also to add an update on our muddy water problems.
Contacted the City Department Manager's on-site meeting and after 2 hours of denial they do not think this brown water could be due to the 2 separate water main ruptures, the list of their investigations was endless 1. Grass clipping or fertilizer from the lawn mower company that services the lawn around the lake. (Same company for years they push mow and bag the grass adjacent to the shoreline). 2. Excess Stormwater runoff ( even though we have been in a drought for almost 2 years now) 3. My personal little 2 hp water fountain by my dock ( I run for a few hours on a weekend mainly for aesthetics) 4. The concrete around one of the street gutters had been stained with iron from the water well irrigation very common for all the neighborhoods in the area ( Although the lake water only turns brown in the winter months when our sprinkler system is shut down). late spring and throughout summer months the clarity is back to normal very clear 6-10 foot visibility. 5. The city slickers wanted to visit other sandpits in the area to compare ( we have 4 or 5 within a square mile) ALL of the sandpit ponds were normal like the water clarity we used to have all year long. So after they finished scratching their heads and trying to align the stars to avoid responsibility they decide to send out a groundwater specialist. Scheduled for Friday (yesterday) No word back on that yet.
Yesterday we took a water sample to a local swimming pool store after looking at the sample in a mason jar which actually looks pretty darn clear with the exception of rust-colored looking blobs that have no substance when you try to pick it up, but it was not very cloudy like one would think. The manager really believes it may be red or brown algae and should be visible through a microscope that hydrogen peroxide may be a good test, and he also saw that the water is high in PH and copper, he recommended not to swim in the lake until it is fixed. Adding the test results below. Free Chlorine: 1.2ppm Total Chlorine: 1.2ppm Combined Chlorine: 0ppm pH: 8.2 Alkalinity: 281ppm Calcium Hardness: 152ppm Cyanuric Acid: 12ppm Total iron: 0.5ppm Copper: 2ppm Phosphate: 376ppb
My personal tests using glass mason jars, again to these old man eyes the water almost looks pretty clear so the water samples have has the brown substance as I described (above) while the others do not.
Adding alum sulfate stance mix stir the jar and the brown substance settles to the top
Adding hydrogen peroxide same result as alum sulfate
Adding Gypsum the water looks like black coffee, maybe using the wrong type of gypsum (pelletized from a local store)
Adding nothing the substance also settles to the top just takes more time.
I am not sure if this helps any of you to help pinpoint or direct us in the right direction. One thing I do know for sure is the fish will be calling me in soon and I would rather be in a boat answering their calls than in front of this computer. Thank you guys and gals ahead of time,
Thank You,
Tom Ryan
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