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Legislation Details
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File #:
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2026-2438
Version:
1
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Type:
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Executive
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Status:
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Executive Approved
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File created:
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9/21/2026
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In control:
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Executive
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Title:
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AUTHORIZING APPROVAL OF AMENDMENT NO. 4 TO PROFESSIONAL SERVICES AGREEMENT #SWMCC01-22 WITH AQUATECHNEX, LLC FOR HERBICIDE APPLICATION OF INVASIVE AQUATIC PLANTS
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Executive/Council Action Form (ECAF)
ITEM TITLE:
Title
AUTHORIZING APPROVAL OF AMENDMENT NO. 4 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. 4 to Agreement SWMCC01-22, which will allow Surface Water Management to continue using Aquatechnex, LLC for invasive aquatic plant herbicide treatments in Snohomish County lakes. This amendment updates the cost of chemicals.
BACKGROUND: This amendment updates the herbicide cost structure for Procellacor, a herbicide used for vegetation management in lakes. The supplier of Procellacor has increased the price and additional market-driven increases are anticipated before the contract term ends. To ensure uninterrupted treatment capacity, the contract rate for Procellacor will shift from a fixed price per additional Prescription Dose Unit to an “at-cost” reimbursable item. Under this amendment, Aquatechnex will invoice the County at the actual market rate and provide supplier receipts for verification. This change will allow Surface Water Management (SWM) to continue scheduled treatments at Lakes Goodwin and Serene. SWM will account for any increased material cost by scaling back treatment plans and/or modifying the annual work plans from other contract work as needed. As a result, SWM does not anticipate any increase to overall project expenditures.
FISCAL IMPLICATIONS:
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EXPEND: FUND, AGY, ORG, ACTY, OBJ, AU |
CURRENT YR |
2ND YR |
1ST 6 YRS |
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415 50951144101 |
$189,000 |
$171,500 |
$571,300 |
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TOTAL |
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REVENUE: FUND, AGY, ORG, REV, SOURCE |
CURRENT YR |
2ND YR |
1ST 6 YRS |
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415 3095111771 7 Lakes Surcharge |
$65,500 |
$5,000 |
$90,355 |
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415 3095111783 Roesiger Surcharge |
$49,000 |
$95,000 |
$241,145 |
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415 3095111784 Serene Surcharge |
$9,500 |
$0 |
$9,500 |
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415 3095110301 Ecology Grants |
$74,500 |
$71,500 |
$198,506 |
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415 3095111770 SWM |
$0 |
$0 |
$31,794 |
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TOTAL |
$189,000 |
$171,500 |
$571,300 |
DEPARTMENT FISCAL IMPACT NOTES:
CONTRACT INFORMATION:
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ORIGINAL |
X |
CONTRACT# |
SWMCC01-22 |
AMOUNT |
$319,700 |
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AMENDMENT |
1 |
CONTRACT# |
“ “ |
AMOUNT |
0 |
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AMENDMENT |
2 |
CONTRACT# |
“ “ |
AMOUNT |
0 |
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AMENDMENT |
3 |
CONTRACT# |
“ “ |
AMOUNT |
$251,600 |
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AMENDMENT |
4 |
CONTACT # |
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AMOUNT |
$0 |
Contract Period
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ORIGINAL |
START |
Date of Execution |
END |
5/18/2025 |
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AMENDMENT 1 |
START |
Date of Execution |
END |
5/18/2025 |
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AMENDMENT 2 |
START |
Date of Execution |
END |
12/31/2026 |
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AMENDMENT 3 |
START |
Date of Execution |
END |
12/31/2027 |
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AMENDMENT 4 |
START |
Date of Execution |
END |
12/31/2027 |
OTHER DEPARTMENTAL REVIEW/COMMENTS: Click or tap here to enter text.
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