Purpose of checklist:

The State Environmental Policy Act (SEPA), chapter 43.21C RCW, requires all governmental agencies to consider the environmental impacts of a proposal before making decisions. An environmental impact statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to help the agency decide whether an EIS is required.

Instructions for applicants:

This environmental checklist asks you to describe some basic information about your proposal. Governmental agencies use this checklist to determine whether the environmental impacts of your proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the most precise information known, or give the best description you can.

You must answer each question accurately and carefully, to the best of your knowledge. In most cases, you should be able to answer the questions from your own observations or project plans without the need to hire experts. If you really do not know the answer, or if a question does not apply to your proposal, write “do not know” or “Does not apply.” Complete answers to the questions now may avoid unnecessary delays later.

Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions if you can. If you have problems, the governmental agencies can assist you.

The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there may be significant adverse impact.

Use of checklist for non-project proposals:

For non-project proposals complete this checklist and the supplemental sheet for non-project actions (Part D). The lead agency may exclude any question for the environmental elements (Part B) which they determine do not contribute meaningfully to the analysis of the proposal.

For non-project actions, the references in the checklist to the words “project,” “applicant,” and “property or site” should be read as “proposal,” “proposer,” and “affected geographic area,” respectively.


1. Name of proposed project, if applicable: Lower Main Canal Automated Check Structures Project

2. Name of applicant: Columbia Irrigation District

3. Address and phone number of applicant and contact person: 10 E. Kennewick Ave. Kennewick, WA 99336 (509)586-6118 Clancy Flynn

4. Date checklist prepared: 4 Feb. 2019

5. Agency requesting checklist: Columbia Irrigation District

6. Proposed timing or schedule (including phasing, if applicable): Between Feb. 2019 and August 2019

7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain.

None Known

8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal.

None Known

9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain.

None Known

10. List any government approvals or permits that will be needed for your proposal, if known.

None Known

11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You do not need to repeat those answers on this page. (Lead agencies may modify this form to include additional specific information on project description.)

The project is for adding three automated gates to the lower CID Main Canal to better manage water levels in the canal. This will involve adding the automated gates to existing check structures on the canal, and constructing new check structures, if necessary. All the work will be done within the existing canal right of way.

12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range, if known. If a proposal would occur over a range of area, provide the range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist.

The Project location will be one gate just downstream of where the CID canal intersects with Piert Rd. in the Finley area. Two gates on the Soggie Check structure located approx. 0.57 miles upstream of the canal intersection with S. Nine Canyon Rd in the Finley area.


1. Earth

a. General description of the site:


b. What is the steepest slope on the site (approximate percent slope)?

Less than 3% grade.

c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any agricultural land of long-term commercial significance and whether the proposal results in removing any of these soils.

The general soils are silts, sandy loam and some gravelly clays.

d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe.


e. Describe the purpose, type, total area, and approximate quantities and total affected area of any filling, excavation, and grading proposed. Indicate source of fill.

CID may need to do minor excavation within the right of way in the event that a new check structure is required. This excavation would require the removal of less than 100 cubic yards and the excavated materials would be used in backfill and grading of the same sites.

f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe.

No, and excavated areas will be covered by rocky clay materials or angular riprap.

g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)?

None known

h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any:

All excavated areas will be backfilled and covered the same day. If there is a need to extend to the next working day the site will be monitored and wetted as necessary.

2. Air

a. What types of emissions to the air would result from the proposal during construction, operation, and maintenance when the project is completed? If any, generally describe and give approximate quantities if known.

There is the potential for blowing dust during construction. The possibility and impact of the dust is minimal since any excavation will be done during the winter months. Other possible air pollutants will be from the machinery used during the project. Upon completion the site will have no air pollutants.

b. Are there any off-site sources of emissions or odor that may affect your proposal? If so, generally describe.

The emissions from hauling the gravel materials need to cover any excavated areas.

c. Proposed measures to reduce or control emissions or other impacts to air, if any: Water will be used to control dust. The vehicles and equipment are properly maintained to minimize their pollutants.

3. Water

a. Surface:

1) Is there any surface water body on or in the immediate vicinity of the site (including year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into.

No, the only waterway is the canal itself. It returns its flows to Lake Wallula on the Columbia River system.

2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans.


3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material.

Does not apply.

4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known.


5) Does the proposal lie within a 100-year flood plain? If so, note location on the site plan.


6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge.


b. Ground:

1) Will groundwater be withdrawn from a well for drinking water or other purposes?


If so, give a general description of the well, proposed uses and approximate quantities withdrawn from the well? Will water be discharged to groundwater? Give general description, purpose, and approximate quantities if known.

 Does not apply.

2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: Domestic sewage; industrial, containing the following chemicals…; agricultural; etc.). Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve.

 None known

c. Water runoff (including stormwater):

1) Describe the source of runoff (including stormwater) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters? If so, describe.

The canal itself would be the only possible collector of storm waters and any other runoff. The canal will function as it would if the project was not under taken. The water potentially collected in the canal flows down the canal and discharges into Lake Wallula on the Columbia River System.

2) Could waste materials enter ground or surface waters? If so, generally describe. None from the proposed project.

3) Does the proposal alter or otherwise affect drainage patterns in the vicinity of the site? If so, describe. No

d. Proposed measures to reduce or control surface, ground, runoff water, and drainage pattern impacts, if any: Does not apply.

4. Plants

a. Check the types of vegetation found on the site: None

— Deciduous tree: Alder, maple, aspen, other

— Evergreen tree: Fir, cedar, pine, other

— Shrubs

— Grass

— Pasture

— Crop or grain

— Orchards, vineyards or other permanent crops.

— Wet soil plants: Cattail, buttercup, bullrush, skunk cabbage, other

— Water plants: Water lily, eelgrass, milfoil, other

— Other types of vegetation

b. What kind and amount of vegetation will be removed or altered? None

c. List threatened and endangered species known to be on or near the site.

None known

d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any:


e. List all noxious weeds and invasive species known to be on or near the site.

None known

5. Animals

a. List any birds and other animals which have been observed on or near the site or are known to be on or near the site.

None known

Examples include:

Birds: Hawk, heron, eagle, songbirds, other:

Mammals: Deer, bear, elk, beaver, other:

Fish: Bass, salmon, trout, herring, shellfish, other:

b. List any threatened and endangered species known to be on or near the site.

None known

c. Is the site part of a migration route? If so, explain.


d. Proposed measures to preserve or enhance wildlife, if any:

Does not apply.

e. List any invasive animal species known to be on or near the site.

None known

6. Energy and natural resources

a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project’s energy needs? Describe whether it will be used for heating, manufacturing, etc.

None known

b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe.


c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any:

No energy conservation is included in the proposed project.

7. Environmental health

a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal?


 If so, describe.

1) Describe any known or possible contamination at the site from present or past uses.

2) Describe existing hazardous chemicals/conditions that might affect project development and design. This includes underground hazardous liquid and gas transmission pipelines located within the project area and in the vicinity.

3) Describe any toxic or hazardous chemicals that might be stored, used, or produced during the project’s development or construction, or at any time during the operating life of the project.

4) Describe special emergency services that might be required.

5) Proposed measures to reduce or control environmental health hazards, if any:

b. Noise

1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)?

None known

2) What types and levels of noise would be created by or associated with the project on a short-term or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site.

The levels of noise that will come from the machinery required for the project will those customary to construction of like nature.

3) Proposed measures to reduce or control noise impacts, if any:

CID will only perform construction activities during normal business hours.

8. Land and shoreline use

a. What is the current use of the site and adjacent properties?

Rural residential and small agricultural.

Will the proposal affect current land uses on nearby or adjacent properties?

If so, describe.

The project will not have an effect on the current land use.

b. Has the project site been used as working farmlands or working forest lands? If so, describe. How much agricultural or forest land of long-term commercial significance will be converted to other uses as a result of the proposal, if any?

The project area has not been used as farm or forest lands.

If resource lands have not been designated, how many acres in farmland or forest land tax status will be converted to nonfarm or non-forest use?

Does not apply.

  1. Will the proposal affect or be affected by surrounding working farm or forest land normal business operations, such as oversize equipment access, the application of pesticides, tilling, and harvesting? No.  If so, how:

c. Describe any structures on the site. The canal check structure and pumping station for the Soggie LID.

d. Will any structures be demolished? If so, what?

No structures will be demolished.

e. What is the current zoning classification of the site?

Canal right of way.

f. What is the current comprehensive plan designation of the site?

 Does not apply.

g. If applicable, what is the current shoreline master program designation of the site?

Does not apply.

h. Has any part of the site been classified as a critical area by the city or county?


 If so, specify.

i. Approximately how many people would reside or work in the completed project?


j. Approximately how many people would the completed project displace?


k. Proposed measures to avoid or reduce displacement impacts, if any:

 Does not apply.

l. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any:

Does not apply.

m. Proposed measures to reduce or control impacts to agricultural and forest lands of long-term commercial significance, if any:

Does not apply.

9. Housing

a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing.

Does not apply.

b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing.

 Does not apply.

c. Proposed measures to reduce or control housing impacts, if any:

 Does not apply.

10. Aesthetics

a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed?

No proposed structures

b. What views in the immediate vicinity would be altered or obstructed?


c. Proposed measures to reduce or control aesthetic impacts, if any:

 Does not apply.

11. Light and glare

a. What type of light or glare will the proposal produce? None What time of day would it mainly occur?

Does not apply.

b. Could light or glare from the finished project be a safety hazard or interfere with views? Does not apply.

c. What existing offsite sources of light or glare may affect your proposal?

None known

d. Proposed measures to reduce or control light and glare impacts, if any:

Does not apply.

12. Recreation

a. What designated and informal recreational opportunities are in the immediate vicinity? None known

b. Would the proposed project displace any existing recreational uses?

 No. If so, describe.

c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any:

 Does not apply.

13. Historic and cultural preservation

a. Are there any buildings, structures, or sites, located on or near the site that are over 45 years old listed in or eligible for listing in national, state, or local preservation registers? Yes.  If so, specifically describe. Only the canal itself.

b. Are there any landmarks, features, or other evidence of Indian or historic use or occupation. This may include human burials or old cemeteries. Are there any material evidence, artifacts, or areas of cultural importance on or near the site?

 None known

Please list any professional studies conducted at the site to identify such resources.

c. Describe the methods used to assess the potential impacts to cultural and historic resources on or near the project site. Examples include consultation with tribes and the department of archeology and historic preservation, archaeological surveys, historic maps, GIS data, etc.

The canal system was constructed starting in 1888 and the site has been a canal right of way since the time of its construction.

d. Proposed measures to avoid, minimize, or compensate for loss, changes to, and disturbance to resources. Please include plans for the above and any permits that may be required.

Does not apply.

14. Transportation

a. Identify public streets and highways serving the site or affected geographic area and describe proposed access to the existing street system. Show on site plans, if any.

Does not apply.

b. Is the site or affected geographic area currently served by public transit? No

If so, generally describe. If not, what is the approximate distance to the nearest transit stop?

 Does not apply.

c. How many additional parking spaces would the completed project or non-project proposal have?

 Does not apply.

How many would the project or proposal eliminate?

Does not apply.

d. Will the proposal require any new or improvements to existing roads, streets, pedestrian, bicycle or state transportation facilities, not including driveways?


If so, generally describe (indicate whether public or private).

e. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or air transportation?


If so, generally describe.

f. How many vehicular trips per day would be generated by the completed project or proposal?


If known, indicate when peak volumes would occur and what percentage of the volume would be trucks (such as commercial and non-passenger vehicles). What data or transportation models were used to make these estimates?

Any travel on the canal is trespass and potential trespassers cannot be calculated.

g. Will the proposal interfere with, affect or be affected by the movement of agricultural and forest products on roads or streets in the area?


If so, generally describe.

h. Proposed measures to reduce or control transportation impacts, if any:


15. Public services

a. Would the project result in an increased need for public services (for example: Fire protection, police protection, public transit, health care, schools, other)?


 If so, generally describe.

b. Proposed measures to reduce or control direct impacts on public services, if any.


16. Utilities

a. Circle utilities currently available at the site: Electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system, other.

Does not apply.

b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed.



The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision.


(do not use this sheet for project actions)

Because these questions are very general, it may be helpful to read them in conjunction with the list of the elements of the environment.

When answering these questions, be aware of the extent the proposal, or the types of activities likely to result from the proposal, would affect the item at a greater intensity or at a faster rate than if the proposal were not implemented. Respond briefly and in general terms.

1. How would the proposal be likely to increase discharge to water; emissions to air; production, storage, or release of toxic or hazardous substances; or production of noise? The proposal will not increase any discharge of any form.

Proposed measures to avoid or reduce such increases are: DOES NOT APPLY.

2. How would the proposal be likely to affect plants, animals, fish, or marine life?

The proposal should not have any adverse impacts on plant or animal life.

Proposed measures to protect or conserve plants, animals, fish, or marine life are: Does not apply.

3. How would the proposal be likely to deplete energy or natural resources?

The proposal should not deplete energy or natural resources. The gates will be operated through the collection and utilization of solar energy on-site.

Proposed measures to protect or conserve energy and natural resources are: Does not apply.

4. How would the proposal be likely to use or affect environmentally sensitive areas or areas designated (or eligible or under study) for governmental protection; such as parks, wilderness, wild and scenic rivers, threatened or endangered species habitat, historic or cultural sites, wetlands, flood plains, or prime farmlands?

The proposal will not have an adverse effect on the environment in any way.

Proposed measures to protect such resources or to avoid or reduce impacts are: Does not apply.

5. How would the proposal be likely to affect land and shoreline use, including whether it would allow or encourage land or shoreline uses incompatible with existing plans?

No known adverse effects of land use or shorelines.

Proposed measures to avoid or reduce shoreline and land use impacts are: Does not apply.

6. How would the proposal be likely to increase demands on transportation or public services and utilities?

No known increased demands on any form of transportation.

Proposed measures to reduce or respond to such demand(s) are: Does not apply.

7. Identify, if possible, whether the proposal may conflict with local, state, or federal laws or requirements for the protection of the environment.

No known conflict of any laws or regulations. 1