Before the Federal Energy Regulatory Commission



Application for Preliminary Permit



for the



Rock Creek Diversion Dam Project




At the Rock Creek Diversion Dam



Plumas County, California



November 26, 2000



Davis Hydro





Prepared By:

Richard D. Ely, Principal


27264 Meadowbrook Drive, Davis ,California 95616 530 753-8854 Fax 530 753-4707


4.32 (a.1) Owner of the Dam: PG&E - a domestic corporation:

Office of the Director, Hydropower Generation

Attn: Mr. Mr. Randy Livingston , Director

245 Market Street, San Francisco, California 94105


(a.2.i) Plumas county:

Board of Supervisors

Courthouse, 520 West Main Street, Quincy, CA, 95971


The following additional service list will be addressed for this permit:

Mr, James Goris, Regional Director

cc: Mr, Jerry Lutticken, Project 1962

Federal Energy Regulatory Commission, Suite 350

901 Market Street, San Francisco, CA 94103


A courtesy copy will be filed on Plumas National Forest, 159 Lawrence Street, Box 11599, Quincy, California 95971. Others as requested by the FERC.


a.2.ii Towns with population greater than 5,000 in 15 miles: None

a.2.iii Irrigation districts, etc. None

a.2.iv Other political subdivisions affected : None

a.2.v Indian Tribes: None known



a.4.ii : This Preliminary Permit application is executed in the state of California, County of Yolo by: Richard D. Ely, 27264 Meadowbrook Drive, Davis, CA. 95616. Being duly sworn, deposes and says that the contents of this application are true to the best of his knowledge or belief. The undersigned applicant has signed the application

This ___________ day of ___________, 2000.


By ____________________________________


Richard D. Ely, President Davis Hydro


Subscribed and sworn to before me, a Notary Public of the state of California this __________ _ day of ___________, 2000.



Seal ____________________________________




Before the Federal Energy Regulatory Commission


Application for Preliminary Permit


(1) Davis Hydro applies to the Federal Energy Regulatory Commission for a preliminary permit for the proposed Rock Creek Diversion Dam Project, as described in the attached exhibits. This application is made in order that the applicant may secure and maintain priority of application for a license for the project under Part I of the Federal Power Act while obtaining the data and performing the acts required to determine the feasibility of the project and to support an application for a license.


(2) The location of the proposed project is:


State or territory: ___ California______________________________

County:___ PLUMAS____________________________________

Township or nearby town:_______Belden_(shown on Exhibit 4)

Stream or other body of water:___North Fork Feather River_____


(3) The exact name, business address, and telephone number of the applicant are:

________Richard D. Ely, DBA Davis Hydro, a sole proprietorship_____________________

________27264 Meadowbrook Drive, Davis, California, 95616________

________530 753-8864 // FAX 530 753-4704 // E-mail kwh@davis.com______


The exact name and business address of each person authorized to act

as agent for the applicant in this application are:

_______________Richard Ely__________________________________________

_______________27254 Meadowbrook Drive________________________________

_______________Davis, CA 95616 ___________________________________

(4) Richard Ely, is a citizen and is not claiming preference under section 7(a) of the Federal Power Act.


(5) The proposed term of the requested permit is 36 months


(6) There are an existing dam, transmission lines, and parking area. The owner of all these facilities: Pacific Gas and Electric Company, 123 Mission Street, San Francisco, CA. 94105


(b) Exhibit 1 A description of the proposed project:


The project is located at the Rock Creek Diversion Dam. The dam is shown on the Exhibit 4 as California Number 93-007, and listed in FERC license 1962, commonly called the Rock Creek or Rock Creek Diversion Dam located in Plumas County at approximately milepost P-12.3 of California Route 70. The dam has a physical composition and description described originally in PG&E drawings 402281 and 402282, with updated elevations and corrections in PG&E drawing 451770 (referenced as Drawing F-1 in FERC license application for Hydropower License number 1962). The dam has a physical composition of concrete with steel spillway gates. It is 126 feet high (stream bed centerline to top of cement). It has a 550 foot crest length. In general configuration, it is a concrete gravity dam built about 1949 and is in excellent condition. It has two major spillways each of 124 wide. Each has 28 drum gates which are maintained at a raised elevation of 2216 feet. There is also a smaller fixed spillway 22.5 feet wide at fixed elevation 2201.2 (all above MSL USGS datum NAD-29). There is about 14 feet of freeboard from the main spillway gates when up, 42 feet when down. There are three low level gated outlets of 78 diameter. There is one other detached structure an inlet structure to the rock creek diversion tunnel. It is critical to the operation of FERC Project 1962.


Reference is made to the Rock Creek Dam in FERC hydropower license 1962. As this project is run-of-river on the fisheries release from this dam, the dam description, and the description of the Rock Creek Reservoir at elevation 2216.3 are incorporated by reference.


(2) There is one impoundment related to this application, the Rock Creek Reservoir. It is an 80 acre reservoir at 2216 elevation. The storage capacity is 4669 acre-feet at normal maximum surface elevation of 2216.2 feet. No changes of any kind are proposed to this reservoir.


(3) There is one proposed transmission line with one 1 MW interconnection to one of several PG&E transmission lines in the immediate area. The new proposed generation at the site would be at 2,400 volts and would be transformed to appropriate primary voltage at the site. The new line proposed extended distance would be greater than 100 feet and less than 1,300 feet.


For this application, we propose a to study a 1,300 foot transmission line to the 60 kV subtransmission line running down the river valley.

(4) The total estimated average annual energy production and installed capacity

87 feet of head (median tailwater)

150 cfs max flow

Three generators would be used with a total capacity of 900 kW at 88 feet of head (max.) Average annual production would be 6.0 GWH. All turbines and generators are proposed as new. None exist.


Table 1 for proposed turbines and generators:



Design Head (feet)

Kw (design net)

KW Capacity


50 cfs





50 cfs





50 cfs





150 cfs

87 median


900 kW


The capacity of the site is limited by head and flow determined entirely by PG&E operation under their FERC license 1962 or a new sequent. This will be a run-of-river operation on whatever flow PG&E or future licensee is required to release.


(5) No lands of the United States are enclosed within the proposed project boundary.


(6) The proposed project would develop, conserve, and utilize in the public interest the water resources of the region. This is a simple dam based release power recovery project. It would use the required run-of-river dam based release for power production. No change in flow will be requested or expected. This generation will lessen the need for fossil generation in the West, and will slightly lessen the burden of the bypass flow.


The project will assist PG&E accurately maintain the bypass flow below the Rock Creek Dam.


(c) Exhibit 2 is a description of studies conducted or to be conducted.


(i) There are two studies required.


1.     PG&E interconnection study. This will be done in cooperation with PG&E which owns all transmission in the area. This will not require new roads.

2.     Engineering feasibility study. We will work with PG&E engineering to determine their requirements to use their dam and parking lot. The project economics are completely determined by what is required by PG&E.

3.     Environmental studies required by review agencies. None are expected, but this cannot be determined until consultation starts. Almost all works are in a parking lot or on the dam.


(i)             All work except a transmission line will take place on the dam or in its existing parking lot. Dam modifications will be minor.


(ii)           A proposed schedule

1. The PG&E interconnection study will commence when permit is issued. It will conclude 2 weeks after PG&E responds with final requirements. We expect this to be 3-6 months from submission.


2. The Engineering feasibility study will commence 2 weeks after the Permit is issued, and be completed 2 weeks after PG&E concludes a favorable review. We expect that to be 2 months after submission to PG&E or 2.5 months from Preliminary Permit issuance.


3. Environmental study requirements are dictated by the review agencies. We expect 1 year will be needed to complete these studies.


Thus, a reasonable estimate of study completion will be 12 months from Permit issue date.


No new dam or foundation exploration will be required.



(d) Exhibit 3 Financing,


The cost of the PG&E interconnection study is estimated at $ 3,000 per megawatt or $ 2,700.


The cost of the feasibility study is $ 15,000.


Any additional environmental studies will be undertaken as required during the consultation process and paid for from personal resources. Personal resources exceed required study costs.


(2) Private sources will supply all financing needed by the applicant to carry out or prepare the studies, under paragraph (c) of this section. This feasibility study is essentially complete at this time.


(3) The California PX is a proposed market for the power generated at the project. Proposed purchasers of the power will be the green power market in California. DOE, the City of Davis, and the Los Angeles Public Works Department have shown interest and have or will be issuing RFPs for this type of power.



(e) Exhibit 4 : Enclosed as a separate sheet.


The entire project is surrounded by and included in the Plumas National Forest. To the south of the project is the Bucks Lake Wilderness. The boundary of this wilderness is shown on Exhibit 4 as the southeastern thick curved line.


(4) The North Fork of the Feather River is not included in the National Wild and Scenic Rivers System.