HomeMy WebLinkAboutEngineer's Report 05.06.2015IDWT
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Dale W. Thome, CO PE 33929
Civil/Structural Engineering & Property Consulting Services
2481 Thunder Mtn. Dr. #61
Grand Junction, CO 81505
970.261.1517 dalethome6Qgmail.com
5.6.15
Garfield County Building Department
Glenwood Springs, CO
Subject Property: Plus Five Shop/Office
Parachute, CO
RE: Periodic Occupancy increase (15 employees to 40) with respect to OSWTS
Gentlemen,
I am in receipt of your request for confirmation for the designed OSWTS to accommodate a periodic occupancy
increase. Please consider this letter as confirmation that the system as designed will accommodate a periodic (5
continuous days maximum) occupancy increase of maximum due to the following:
I) Infiltrator storage volume will accommodate periodic occupancy (volume) increase with no
detrimental effect to soil absorption.
2) 1000 gal. septic tank will provide 1.5 days of detention time for a design flow of 667 gal/day. 40
employees x 15 gal/day (per 8 hour shift) = 600 gal,+day.
600gal/day < 667 galiday OK - Tank will provide adequate detention
for periodic increase
If any questions or concerns arise regarding this OSWTS, please do not hesitate to contact our office at 970-261-
1517.
Respectfully,
Dale Thome, PE