Del. Code tit. 9, § 3408

All amounts collected under this chapter shall be paid into a fund of New Castle County as provided under the ordinance adopted under § 3402(a) of this title and all payments for stormwater maintenance shall be paid out of this fund. Should New Castle County fail in any 1 year to collect all of the fees in the stormwater maintenance district necessary to pay the price for stormwater maintenance in any year, the county government may pay the deficit out of this fund pending enforcement of the lien. The county government may make payments out of this fund in anticipation of collection of the stormwater maintenance fee.