Download 1- EPA Spreadsheet. r8_sediment_cumulative_10282015
Download 2 -DEQ/DWQ Report Tibble-Fork-Screening-Analysis (1)
Download 3- Tibble Fork Sediment Samples Full Report.**** 16H1293 Final with extras **( click to open) to allow comparison with Gold King Mine and determine which Acute Event was worse.
Download 4- This is a work in progress comparing new data as it comes in from GRAMA to what is known about Gold King Mine.
Who owns the Reservoir?
Managing Sediment in Utah’s Reservoirs click here Managing Sediment In Utah’s Reservoirs1
Values below in red are estimates based upon 2013 census, partial GRAMA responses. Still trying to ascertain total estimates on pounds of sediment that went downstream, what is still in the canyon, what is in the settling ponds, what then went into the secondary water (irrigation). Some reports estimate 4% of Tibble sediments went downstream, others say 8700 cubic yards, others suggest 108 acre feet lost due to sediments, others 229,000 tons .. we are trying to find solid answers to this, but certainly more than the 540 tons of heavy metals from Gold King Mine..
Tibble Fork Dam Phase II Evaluation and Analysis report really missed the now known concentrations of heavy metals, but discuss the need for more data.
1.16 over Public Health standard
50.3 times over aquatic standard
https://www.epa.gov/sites/production/files/…/r8_sediment_cumulative_10282015.xlsx (copy and paste to download EPA data)
Remediation proposal plan first response Nov 2016 to DWQ from Irrigation company dwq-2016-015072-nov-1
Irrigation Company Plan- click here to read plan
DWQ response to Irrigation Company Plan dwq-2016-016210
How will sediment in backyards in Highland, Lehi, American Fork be deemed safe? Its not recreational exposure in backyards.
GRAMA to City of American Fork for water quality samples / testing
PPAFC testing lab results Aug 22nd 2016 samples. Below Tibble Fork, Mouth of AF Canyon
NOVEMBER RESIDUAL SEDIMENT SAMPLES AT MOUTH OF AF CANYON IRRIGATION WIER. THE RESULTS SHOW THE CONCENTRATED STUFF, FLOWED DOWNSTREAM, Heavy metals still are in the sediment, but there are est. 8500 yards of sediment that went someplace and its not settling in the wier as suggested by those in charge.
Sediments at Weir Nov 2016 16k0960_2-final-main-wpdf3-11-30-2016-1356
Do I have heavy metals now in my backyard? If so, what can I do about it? http://extension.psu.edu/plants/crops/esi/lead-in-soil