Engineering Documents

A fire hydrant flow test provides pressure and flow data at specific fire hydrants within the District’s distribution system. The data can be used to assess the pressure and flow available for fire protection, sprinkler system design, mainline design, and proper sizing of domestic and/or fire service lines.
The District conducts fire hydrant flow tests either in the field or via a hydraulic model. If conducted in the field, the fire hydrant flow test requires testing three fire hydrants: (1) Flowing & (2) Residual. The first hydrant is the flow hydrant, which is located closest to the property being tested. The second and third are the test (residual) hydrants and are located directly upstream or downstream from the flow hydrant. If conducted in the hydraulic model, the District will simulate conditions on the desktop to produce the same results.

Process Flow Chart, Submission Instruction and Answers to FAQs.

For starting commercial (non-residential) water and sewer services. Services typically include a potable water meter and sewer service. In some cases, service may be multiple potable water meters, multiple sewer services, irrigation services, and/or fire protection services. These different services depend on the commercial business and requirements of other agencies such as Orange County Fire Authority or your City’s Building Division.

Process Flow Chart, Submission Instruction and answers to FAQs.

The Will Serve Permit Process (Permit Process) is the mechanism to verify that ETWD can serve domestic, sewer, and/or irrigation and fire services to a commercial site. The commercial site will typically add or change specific services depending on the site’s use type and requirements. The Permit Process allows both ETWD and the commercial tenant to formally explore the extent of the commercial project as it relates to ETWD-provided services.

Process Flow Chart, Submission Instruction and answers to FAQs.

A construction water meter is a temporary way to safely provide water to commercial customers. A typical reason for needing a construction water meter is for a construction project.

A construction water meter is placed on a nearby public fire hydrant by ETWD operations staff only. Once the water is no longer needed, ETWD operation staff removes it from service.

Process Flow Chart, Submission Instruction and answers to FAQs

The District is currently updating its Standard Drawings and Standard Specifications. To request a standard drawing, utility atlas sheet, or any other related Engineering matter, please email the Engineering Department at Engineering@etwd.com

To view the most current Water and Sewer Master Plan Document (2004), please click here.

In order to better maintain the public sewer system, ETWD has implemented a Fats, Oils, and Grease (FOG) Program. The intention is to prevent sewage blockages in the public sewer system resulting from these discharges. If you are a Food Service Establishment in the El Toro Water District, please fill out the FOG application linked below and submit to Ed Peterson at Epeterson@etwd.com.

FOG Application

Any Discharger of non-domestic, industrially or commercially generated wastewater is required to apply for a Wastewater Discharge permit. If your commercial business generates this type of waste please fill out the Waste Discharge Permit Application linked below and submit to Ralph Palomares at Rpalomares@etwd.com.

Wastewater Discharge Permit Application