Elko County School District

SERVICE STUDIO: Community Planning, Surveying, Mapping, & GIS, Civil Infrastructure Engineering, Construction Management & Inspection, Material Testing & Inspection
Location: Elko County
Project Manager: Nitin Bhakta


Summit Engineering designed the septic system for the Spring Creek Elementary School when the school was constructed in the late 1980’s. The septic system, a large volume system, consisted of a 12,000-gallon septic tank, 2 alternating siphon dosing tanks, 5 distribution boxes, 22,000 square feet of leach field consisting of 24 leach lines (4 quadrants), 8 piezometers to monitor effluent levels, and a groundwater monitoring well. Periodic monitoring of the septic system is a permit requirement of large-volume septic systems, and Summit Engineering has monitored the Spring Creek septic system since it was constructed in 1988. Approximately 15 years after the system was put into service effluent was continually noted to be standing in a portion of one of the leach fields. Summit continued to keep an eye on the system and eventually notified the school district, suggesting that they consider constructing an additional leach field to relieve the existing system.


The project scope of work included surveying, mapping, geotechnical investigation, civil engineering design, and preparation of plans, specifications, and estimating documents suitable for bidding and construction. The auxiliary septic system was designed to tie into the existing septic system such that one-half (two quadrants) could be shut off at any time and redirected to the auxiliary system, allowing the original leach field to rest and restore itself. The auxiliary system consisted of 300 feet of PVC sewer line, 4 gate valves, an alternating siphon dosing tank, 3 distribution boxes, a manhole, 8 air vents, 4 piezometers, and a groundwater monitoring well.

In 2008, 20 years after the original septic system was constructed, Summit was retained to design an auxiliary leach field.

Spring Creek High School Food & Science Building Addition - 2023

Summit Engineering will be responsible for all aspects of civil engineering design, and permitting including preparation of NOI and SWPPP permits, grading with cut/fill quantities, and Engineers' estimates for civil site construction costs. Summit Engineering performed the geotechnical analysis on the site for soil classification for foundation design, pavement, and concrete recommendations based on soil conditions. Laboratory analysis will be performed on the existing soils to determine if soils are suitable for structural fill under, buildings, parking lots, and general site requirements. Site survey to tie existing building and existing utility improvements on site, locate existing buildings, and underground utilities (water, sewer, and storm drain).

Similar Projects