Here is what I found on the web page. Hope it helps. That launch is crap in the wind.
http://archive.ci.mukilteo.wa.us/Page.asp?NavID=121
MUKILTEO LIGHTHOUSE PARK
PUBLIC BOAT LAUNCH
Information: 425.263.8000
Located: Lighthouse Park: 609 Front Street, Mukilteo, 98275, map and driving directions.
Hours
May 15 - September 30 - 4:00 am– 10:00 pm
Oct. 1 - May 14 - 6:30 am - Dusk
About the Boat Ramp
Operated by the City of Mukilteo, the Lighthouse Park boat launch is located at the northwest side of the park on Elliott Point on Possession Bay. Three to four boats can launch at this site at one time, depending on the size of the boats.
May 15 - Sept. 30 Boat launch* floating docks are put in the water (installation varies due to weather conditions and tides.)
Oct. 1 – May 14 Boat launch is open, NO floating docks; they have been removed from the water.
*Use caution on floating docks. They can be dangerous in windy and high wave conditions.
No Public Pumpout or Porta-Potty Dump Station at this Boat Launch
It is illegal to discharge untreated sewage anywhere within the three-mile territorial limit of the United States. In Washington, this includes all of Puget Sound. Use of US Coast Guard approved Type I and Type II Marine Sanitation Devices is permitted; however, these do not treat waste to the same standard as land-based treatment. Please avoid use of these devices in shallow water, near shellfish beds and in marina basins.
The best option is to use a holding tank or porta-potty, also known as Type III MSDs.
The nearest public pumpouts and porta-potty dump stations are:
Port of Everett Marine, 425.259.6001
Port of Everett Boat Ramp, 425.259.6001
Port of Edmonds Marina, 425.774.0549
These pump outs are free of charge, open 24 hours/day.
Fishing License
A species-appropriate license is required for each person 15 years of age and older; licenses are available at sporting goods stores or go to
http://www.fishhunt.dfw.wa.gov" onclick="window.open(this.href);return false; to purchase a license online.
No fish cleaning facilities on site. DO NOT CLEAN FISH IN RESTROOM FACILITIES.
Fees
For your convenience, an electronic fee machine makes payment quick and easy by accepting the following coins: nickels, dimes, quarters and dollar coins and the following bills: one’s, five’s, ten’s, and twenty’s. The machine does not make change. A dated ticket will be issued for display on your dashboard. Visa and MasterCard are also accepted. A daily permit with overnight parking privileges is available.
May 15-Sept. 30 Oct. 1-May 14
Vehicle/Trailer parking one day
Vehicle/Trailer parking 2 days
Vehicle/Trailer parking 3 days
Vehicle/Trailer parking 4 days
$15
$30
$45
$60
$10
$20
$30
$40
Annual permit holders are authorized to park overnight in the vehicle/trailer parking stalls, with permit displayed, for up to a maximum of four (4) nights at any one time.
Annual Boat Launch Parking Permit
Resident: $50
Non-resident: $100
To purchase an annual boat launch parking permit, see this application.
Amenities
Restrooms are available near the launch. For last-minute snacks and refreshments, stores and restaurants are located near the park entrance. The nearest gasoline is up SR525 approximately 2.5 miles from the boat launch. The boat launch is located just a few blocks from the Washington State Ferry/Clinton. A no-fee trash compactor is available at the launch site. This launch does not have a sewage pump out.