Neptune is the internal project name for the Orange County Stormwater Tools. The Orange County Stormwater Tools application is built by Sitka Technology Group (https://sitkatech.com) in partnership with Geosyntech Consultants (https://geosyntec.com) for Orange County Public Works. The Orange County Stormwater Tools application is derived from the Tahoe Regional Planning Agency's Lake Tahoe Info Stormwater Tools (https://stormwater.laketahoeinfo.org). This program is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation.

The Trash Module and Modeling Module copyright © County of Orange, Geosyntec Consultants, and Sitka Technology Group. Inventory Module and Common Application Code copyright © Tahoe Regional Planning Agency and Sitka Technology Group.