Our Services
Subdivision Permitting & Design
Arrowroot Engineering provides full scale design services for subdivision permitting and design including the following:
1) Certificate of Subdivision Approval (COSA) Preparation & Rewrites
2) Local county onsite wastewater permits
3) DEQ-8 Circular stormwater design
Onsite Wastewater System Design
Arrowroot Engineering provides full service drainfield design for your residential home or commercial business. Ashley is a registered Gallatin County Site Evaluator and can complete the required soil characterizations for your proposed system.
Stormwater Pollution Prevention Plan (SWPPP) Preparation
Ashley is a certified SWPPP preparer in the state of Montana and can help prepare SWPPPs for construction sites with greater than 1 acre of disturbance.
Failed Drainfield & Replacement System Design
When a septic drainfield begins to fail, homeowners often notice slow-draining fixtures, sewage odors, wet/soggy areas in the yard, or wastewater backing up into the home.
Arrowroot Engineering provides septic system evaluations and replacement drainfield design for properties.
We can evaluate your existing system, identify site constraints, and develop a replacement system designed for your property and applicable regulatory requirements.