Dunea N.V. wishes to improve the process of the slow sand filters (LZF) in Katwijk. The procurement concerns a work assignment without a CPV code, carried out via a non-public procedure. The objective is to increase the efficiency and water quality of the LZF, reduce the maintenance frequency, and lower operational costs. The assignment includes analyzing the current filter configuration, designing optimizations (e.g., improved filtration patterns, automated cleaning schedules, monitoring systems), setting up a pilot phase, and implementing the findings on the entire LZF installation. Additionally, a training and documentation plan must be drawn up for the operational staff. The works require knowledge of water treatment, filter technology, and Dutch regulations. The duration of the project is estimated at 12–18 months, with an explicit focus on minimal disruption to the current water supply.
Works · Restricted · National procedure
01What is being requested
Dunea N.V. wishes to improve the process of the slow sand filters (LZF) in Katwijk. The procurement concerns a work assignment without a CPV code, carried out via a non-public procedure. The objective is to increase the efficiency and water quality of the LZF, reduce the maintenance frequency, and lower operational costs. The assignment includes analyzing the current filter configuration, designing optimizations (e.g., improved filtration patterns, automated cleaning schedules, monitoring systems), setting up a pilot phase, and implementing the findings on the entire LZF installation. Additionally, a training and documentation plan must be drawn up for the operational staff. The works require knowledge of water treatment, filter technology, and Dutch regulations. The duration of the project is estimated at 12–18 months, with an explicit focus on minimal disruption to the current water supply.
Improvement of slow sand filter process Katwijk
02Value in context
The contracting authority did not publish an estimated value — common for a large share of contracts. The EU threshold for werken is € 5,54 M, for reference.
03Likely competitors
04Tender documents
05Legal themes that may be relevant here
06Frequently asked questions
What does the work regarding the LZF installation entail?
What is the expected duration of this project?
What expertise is required for the execution of this assignment?
Which additional components are part of the assignment?
Automatically compiled from the official tender data and documents.
07Estimated value versus the market
€ 1,4 mln
€ 3,6 mln
€ 9,1 mln
Gegunde waarden in CPV 45 · werken n=3159