Experts in Onsite Wastewater in all Central California counties 1-800-832-7711
Tim Johnston, P. E. is the Civil Engineer on staff that has a lifetime of experience working with septic systems. Tim has worked through residential septic system projects and large scale commercial facility onsite wastewater treatment system projects. Acorn Onsite, Inc. has the long term solution as the focus of our efforts. We are experienced with and have positive relationships with the regulators, both at the County Environmental Health Agency level and at the California Regional Water Quality Control Board. We are competent working through all the appropriate wastewater permitting processes. We can perform all tasks in house or we are happy to work with other consultants, professionals, architects, engineers, contractors, installers, surveyors, etc. as appropriate.
A percolation test being conducted in Castro Valley, California.
Soil investigation including: soil profiles, percolation testing, topographic surveying, mapping, groundwater determination, wet weather testing, soil observation and analysis; septic engineering in Livermore
Onsite Wastewater Treatment System (septic system) engineering designs. We utilize a cost effective, appropriate septic system design for your parcel. Either if it is for residential, commercial, winery, industrial use.
We are experienced working through OWTS permitting process of the various county Environmental Health Departments and the Regional Water Board, as applicable.
If you have an existing septic system that is giving you some trouble, give us a call and we can asses the options. Maybe it's a simple fix or maybe something more complicated. We are always interested in the long term solution to problems.
Acorn Onsite, Inc. staff is committed to providing long term onsite wastewater treatment system solutions. We care for the envionrnment and we care for the customer's needs.
We can provide honest opinion regarding the conditions of an existing septic system, regarding the feasibility of a new or replacement septic system, or any opinion related to the site's wastewater issues or concerns.
We prepare an appropriate septic system design for the site. We work on residential dwellings, commercial facilities, institutional facilities, wineries, industrial warehouse, and anywhere in between. We work in Alameda County, Stanislaus County, Santa Clara County, San Mateo County, Monterey County, San Benito County, Marin County, Solano County, Napa County, Yolo County, Contra Costa County, Sacramento County, and all counties throughout Central California. We are experienced working through any county or State permitting processes.
When site and soil conditions are favorable for a simple, gravity flow leach field we find this type appropriate. As conditions, such as soil type and compact spaces, get "worse" or less favorable, more complicated system types are used.
On sites where shallow soils are found often a shallow trench pressure distribution system is appropriate. These systems utilize a pump or siphon to use the shallow soils to treat the effluent.
In shallow soils or where a pretreatment unit is necessary, drip dispersal is sometimes an appropriate technique.
In shallow soils, underlain by shallow rock, hard soils, high groundwater levels, etc. an at-grade bed dispersal system may be appropriate for the site.
If conditions or permit requirements necessitate further treatment than the depth of soil allows at the site, a pretreatment unit can be used.
Have you heard of a type of septic system not listed here? Give us a call to discuss that system's type as applicable to a practical application.
The type of septic system that is designed is based on the site and soil conditions encountered in soil testing, topography surveying, site layout, and other site development activities. Give us a call to discuss your site and see how we can help you on your next development.
(925) 447-5200 or 1-800-832-7711
A visual walk through of the site's apparent surface conditions provides useful information. Depending upon the slope, surface soil types, vegetation, and other features indicate some tell tale signs of OWTS feasibility and placement.
A soil profile is used to classify the soil in the potential leach field area. Often a backhoe is used to dig about 10 to 12 feet deep and classify the soil characteristics. Depth to a limiting condition such as groundwater are also observed.
Often called perc tests, percolation testing is used to determine a rate water percolated into the soil. The percolation rate is then correlated to the long term acceptance rate of the soil.
In some soil types it is appropriate to determine how the soil behaves in the wet season of the year. Groundwater monitoring and other testing is sometimes used at this stage.
We have vast knowledge sites that we have developed septic systems on. We use our past knowledge of the area to assist in the feasibility determination.
We do not shy away from reading. We keep current on the up and coming new in the industry, the local area, and all things septic system. This current knowledge leads to a successful project implementation.
Speak with an engineer regarding the septic system feasibility for your next project.