Snohomish County Council - File #: 2026-2218

• File #: 2026-2218
• Version: 1
• Type: Executive
• Status: Executive Approved
• File created: 8/20/2026
• In control: Executive
• Title: AUTHORIZING APPROVAL OF AMENDMENT NO. 3 TO PROFESSIONAL SERVICES AGREEMENT #SWMCC01-22 WITH AQUATECHNEX, LLC FOR HERBICIDE APPLICATION OF INVASIVE AQUATIC PLANTS

Executive/Council Action Form (ECAF)

ITEM TITLE:

Title

AUTHORIZING APPROVAL OF AMENDMENT NO. 3 TO PROFESSIONAL SERVICES AGREEMENT #SWMCC01-22 WITH AQUATECHNEX, LLC FOR HERBICIDE APPLICATION OF INVASIVE AQUATIC PLANTS

body

DEPARTMENT:  DCNR/Surface Water Management

ORIGINATOR:  Marisa Burghdoff

EXECUTIVE RECOMMENDATION:  Click or tap here to enter LEGISLATION TITLE.

PURPOSE: Approval of Amendment No. 3 to Agreement SWMCC01-22, which will allow Surface Water Management to continue utilizing Aquatechnex, LLC for invasive aquatic plant herbicide treatments in Snohomish County lakes. This amendment extends the agreement an additional year; adds $251,600 to the original contract amount of $319,700 for a total of $571,300; and adds three chemical control options not previously included in the original contract.

BACKGROUND: Invasive aquatic plants continue to affect lake health and recreation across Snohomish County. Surface Water Management (SWM) currently assists communities at six local lakes. This work has expanded since Council approved Agreement SWMCC01-22 with Aquatechnex, LLC in 2022. Funding capacity has also grown: SWM has secured new grants for Lake Serene (2025-2026) and Lake Roesiger (2026-2027) and will be applying for an additional Lake Serene/Sunday Lake grant this fall to support work in 2027-2028. Lake community funding has also increased via lake surcharges established in SCC 25.20.050 through 25.20.054. To support ongoing and upcoming work at Lakes Goodwin, Shoecraft, Roesiger, Serene, and Sunday, SWM requires an increased contract amount and an extension of the agreement term. This amendment includes all potential additional work in 2026 and 2027 assuming the new grant will be obtained. The original contract allows it to be extended or renewed for two additional one-year terms, with the first one-year extension previously approved under amendment 2, so amendment 3 covers the 2^nd allowed one year extension. Amendment 3 also adds three new treatment options to address curly-leaf pondweed at Lake Serene, which had not yet had a treatment plan completed when the original contract was approved. The original solicitation and associated contract allow for additional chemical control options to be added as needed. 

FISCAL IMPLICATIONS:

EXPEND: FUND, AGY, ORG, ACTY, OBJ, AU	CURRENT YR	2ND YR	1ST 6 YRS
415 50951144101	$189,000	$171,500	$571,300
TOTAL

REVENUE: FUND, AGY, ORG, REV, SOURCE	CURRENT YR	2ND YR	1ST 6 YRS
415 3095111771 7 Lakes Surcharge	$65,500	$5,000	$90,355
415 3095111783 Roesiger Surcharge	$49,000	$95,000	$241,145
415 3095111784 Serene Surcharge	$9,500	$0	$9,500
415 3095110301 Ecology Grants	$74,500	$71,500	$198,506
415 3095111770 SWM	$0	$0	$31,794
TOTAL	$189,000	$171,500	$571,300

DEPARTMENT FISCAL IMPACT NOTES: The additional expenses for this contract amendment are covered by grants and lake surcharge revenues. SWM has sufficient budget authority in the approved 2025-26 budget to cover the additional expenses. Additional contract expenses were also included in the 2027-28 proposed budget for SWM.

CONTRACT INFORMATION:

ORIGINAL	X	CONTRACT#	SWMCC01-22	AMOUNT	$319,700
AMENDMENT	1	CONTRACT#	“  “	AMOUNT	0
AMENDMENT	2	CONTRACT#	“  “	AMOUNT	0
AMENDMENT	3	CONTRACT#	“   “	AMOUNT	$251,600

Contract Period

ORIGINAL	START	Date of Execution	END	5/18/2025
AMENDMENT 1	START	Date of Execution	END	5/18/2025
AMENDMENT 2	START	Date of Execution	END	12/31/2026
AMENDMENT 3	START	Date of Execution	END	12/31/2027

OTHER DEPARTMENTAL REVIEW/COMMENTS:  Click or tap here to enter text.