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Grant Michael Hardgrave

from Bend, OR
Age ~54

Grant Hardgrave Phones & Addresses

  • 20464 Klahani Dr, Bend, OR 97702 (541) 317-5160
  • 1526 33Rd St, Bremerton, WA 98310 (360) 415-9432
  • Yucaipa, CA
  • Tualatin, OR
  • Pensacola, FL
  • Portland, OR
  • Corvallis, OR

Work

Company: Hickman williams and associates Feb 2005 Position: Project manager

Education

Degree: Bachelor of Science (BS) School / High School: Cal Poly San Luis Obispo 1988 to 1994 Specialities: Civil Engineering

Skills

Civil Engineering • Construction Management • Construction • Autocad • Project Management • Stormwater Management • Drainage • Concrete • Project Estimation • Contract Management • Project Planning • Highways • Ms Project • Road • Land Development • Project Control • Submittals

Industries

Civil Engineering

Resumes

Resumes

Grant Hardgrave Photo 1

President

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Location:
Bend, OR
Industry:
Civil Engineering
Work:
Hickman Williams and Associates since Feb 2005
Project Manager

US Navy Feb 1999 - Feb 2003
Officer-Civil Engineer Corps
Education:
Cal Poly San Luis Obispo 1988 - 1994
Bachelor of Science (BS), Civil Engineering
Skills:
Civil Engineering
Construction Management
Construction
Autocad
Project Management
Stormwater Management
Drainage
Concrete
Project Estimation
Contract Management
Project Planning
Highways
Ms Project
Road
Land Development
Project Control
Submittals

Business Records

Name / Title
Company / Classification
Phones & Addresses
Grant M. Hardgrave
Principal
DRYWELL RETROFIT SOLUTIONS
Business Services at Non-Commercial Site
20464 Klahani Dr, Bend, OR 97702

Publications

Us Patents

Drywell Retrofit Sump Insert For Storm Water Treatment

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US Patent:
20120195686, Aug 2, 2012
Filed:
Jan 30, 2012
Appl. No.:
13/385077
Inventors:
Grant Michael Hardgrave - Bend OR, US
International Classification:
E02B 13/00
US Classification:
405 52
Abstract:
The present invention is a drywell retrofit sump insert designed to be placed inside an existing drywell or other similar Underground Injection Control (UIC). The drywell insert helps protect groundwater by removing pollutants from raw storm water runoff that enters the drywell before the drywell infiltrates the storm water into the ground. Once the raw storm water enters the drywell retrofit sump insert, sand, silt, grit, and other high-density pollutants settle out of the storm water stream and accumulate in the bottom of the drywell retrofit sump insert. Oil, grease, and other low-density pollutants float on top of the standing water inside the drywell retrofit sump insert and are kept inside by the oil baffles on the outlet holes. The drywell retrofit sump insert is comprised of a rigid cylinder with an integral flanged bottom attached by means of a watertight joint.

Method And Apparatus For A Drywell Retrofit

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US Patent:
20120128423, May 24, 2012
Filed:
Nov 22, 2010
Appl. No.:
12/927671
Inventors:
Grant Michael Hardgrave - Bend OR, US
International Classification:
E03F 1/00
US Classification:
405 60
Abstract:
The present invention is a drywell retrofit top that can either replace the top portion of an existing drywell or be placed upon a newly placed drywell. The drywell retrofit top provides a flow path for storm water run-off from the top of the drywell directing the storm water run-off that falls into the drywell retrofit top trap chamber and then directs the water to a treatment system. After the treatment system process the water, the water is flows back to the drywell retrofit top to a drop chamber and then discharged into a drywell chamber where the water is able to percolate of filtrate back to surrounding native soils. The drywell retrofit top uses a precast concrete cylinder that has an integral bottom piece that is placed on top of a perforated precast concrete cylinder from the previous drywell. The drywell retrofit top has a vertical dividing wall separating the precast concrete cylinder into two chambers with a larger chamber collecting the storm water run-off. While the water is collected, sediment and heavier than water pollutants settle out in the trap chamber. An outlet pipe is place several inches or some way up the side wall of the drywell retrofit top cylinder. Once the water reaches the level of the outlet pipe, the water then flows out of the trap chamber to a treatment system that is typically situated near the drywell.
Grant Michael Hardgrave from Bend, OR, age ~54 Get Report