Contract: $872,452.00
Completed: October 2008
Owner: City of Marshalltown, IA
Scope: Construct new inverted siphon under Linn Creek, replace sewage pumps in existing lift station
Contract: $39,098,698.00
Completed: August, 2013
Owner: City of Clinton, IA
Engineer: HDR, Omaha, NE
Scope: New Wastewater Treatment Facility along with new influent pumping station.New pumping station was on separate site from new WWTF. New pumping station was large concrete structure with pumps, controls and building. New WWTF consisted of Head works building, with screening and grit removal, oxidation ditch bioreactors, secondary clarifiers, effluent pump station, aerobic digesters and solids handling / dewatering facilities. Along with associated site work, process piping, mechanical, electrical and instrumentation for both sites.
Plant Capacity is 15 MGD
Contract: $14,987,500.00
Completed: December 2012
Owner: City of Washington, IA
Engineer: Fox Engineers, Ames, IA
Scope: Construction of a new wastewater treatment facility including; a new operations building housing new screening, screenings washing and compacting equipment; new grit removal, dewatering and pumping equipment; new raw wastewater pumping station; new SBR basins; fine bubble diffused aeration equipment, and related blowers for the continuous flow SBR process; flat aluminum cover on the Post-SBR Equalization Basin; new waste activated sludge pumping equipment and piping; new aerobic sludge digesters and piping; new blowers for the aerobic digesters; new sludge storage basin and mixing equipment; new UV disinfection equipment; new electrical power and control equipment, generator and other misc piping, electrical, mechanical and equipment.
Plant Capacity is 6.4 MGD
Job Cost: $16,776,900.00
Started: November 2012
Owner: City of Fort Dodge, IA
Engineer: McClure Engineering Co., Fort Dodge, IA
Scope: Expansion of existing wastewater plant, including modifications to 2 existing Vertical Loop Reactors (VLR’s), construction new VLR tank (tank 3), new 100 ft final clarifier, new RAS/WAS pump station, new blower building and chemical building, east and west blower building additions, new 65 ft aerobic digester and sludge mixing heating building, lagoon work and misc site structures. Scope includes, excavation, concrete, masonry, metals, misc building trades, pipe, hvac, plumbing, electrical and instrumentation / controls. Plant Capacity upgrade will allow 12 MGD in pretreatment and 18.6 MGD in secondary treatment.
Contract: $8,827,011
Completed: August 2013
Owner: City of Okoboji, IA
Scope: Water treatment plant rehabilitation and expansion: new pretreatment system including rapid mixing equipment and flocculation, new high service pumps, new chemical feed equipment, retro-fit new metal roof on top of existing roof, associated process piping, electrical and controls. Scope of work also included multiple phasing operations to keep existing plant in operation.
Plant Capacity was upgraded to 2.5 MGD
OWNER | PROJECT | CITY | AMOUNT |
---|---|---|---|
City of Okoboji | Water Treatment Plant | Okoboji, IA | $8,903,800 |
City of Washington | Wastewater Treatment Plant | Washington, IA | $14,987,500 |
City of Clinton | Wastewater Treatment Facility | Clinton, IA | $39,009,402 |
City of Marshalltown | TSPS | Marshalltown, IA | $871,930 |
City of Nevada | Wastewater Treatment Plant | Nevada, IA | $1,465,000 |
City of Sioux City | Lift Station | Sioux City, IA | $7,766,103 |
City of Rockwell City | Wastewater Treatment Improvement | Rockwell City, IA | $1,994,900 |
City of Monticello | Wastewater Treatment Plant | Monticello, IA | $1,583,800 |
City of DeWitt | Wastewater Treatment Plant Improvements | DeWitt, IA | $3,812,474 |
City of Creston | Wastewater Treatment Plant Exp. | Creston, IA | $2,800,520 |
City of Cedar Falls | Wastewater Treatment Facility | Cedar Falls, IA | $582,800 |
Central Water Systems | Wastewater Treatment Facility Improvements | Okoboji, IA | $353,258 |
Iowa Great Lakes San. Dist. | Water Pollution Control Facilities Imp. | Milford, IA | $2,092,013 |
City of Cedar Rapids | Wastewater Treat. Plant Additions | Cedar Rapids, IA | $5,970,277 |
City of Oskaloosa | Wastewater Treat. Plant Modifications | Oskaloosa, IA | $1,586,500 |
City of Dubuque | Water Treatment Plant Phase II | Dubuque, IA | $576,921 |
City of Dubuque | Water Pollution Control Plant | Dubuque, IA | $2,173,168 |
City of Nevada | Remote Flow Equalization | Nevada, IA | $1,365,289 |
City of Nevada | Wastewater Treatment Improvements | Nevada, IA | $3,843,034 |
City of Ottumwa | Sewage Plant | Ottumwa, IA | $1,883,000 |
3990 27th Street SE | Buffalo, Minnesota 55313 | Phone:763-559-3734 | Fax: 763-559-3736 |gridor@gridor.com
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