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ROADSIDE DEVELOPMENT

845UNFORESEEN WATER POLLUTION CONTROL

PA · 2026 Standard Specifications✓ Full text on BuildSpecBook pages 774–0 Save this section

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845.1DESCRIPTION—This work is construction of temporary or permanent control measures, as ordered

during the contract life, to control unforeseen pollution of surface water and groundwater.

845.2MATERIAL—

• As specified in applicable parts of Sections 804, 805, and 806.

• Erosion and sediment pollution control devices. as shown on the Standard Drawings.

• Other water pollution control measures and devices as directed.

845.3CONSTRUCTION —As directed during construction, provide water pollution control measures to

prevent or abate unforeseen pollution of surface water and groundwater resources. These measures are separate from those temporary and permanent water pollution control features designed for the project. Coordinate control measures with the Erosion and Sediment Control Plan and permanent features to ensure economical, effective, and continuous pollution control throughout the construction and post-construction periods. Also comply with the requirements specified in Section 107.28. If directed, place pollution control measures for authorized construction areas outside the right of way. Comply with all applicable Federal, State, and local laws, rules, or regulations.

845.4MEASUREMENT AND PAYMENT—Dollar

The proposal will include an item and a predetermined amount of money for Unforeseen Water Pollution Control. The contract item will have a unit of measure of Dollar, a unit price of $1.00, and a quantity equal to the predetermined amount. Because of the contingent or unpredictable nature of the work being performed, the provisions of Section

110.02(d) are not applicable to this item

Measured and paid for, under the Unforeseen Water Pollution Control item as follows:

(a)Contract Items. The Department will pay for performance of work, identified as having similar items

listed in the contract, at the contract unit price.

(b)Non -Contract Items. The Department will pay for items of work not identified in the contract as

follows:

1.Negotiated Price. At price agreed upon with the Department before performing the work. If applicable,

agreement is also required with FHWA.

2.Force Account Basis. Section 110.03(d)

849 – 1

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Source: Publication 408 Highway Construction Specifications, 2026 Edition. Pages 774–0 of 1,522. View official source ↗

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Scoped to Pennsylvania Publication 408 — Specifications, Section 845 — UNFORESEEN WATER POLLUTION CONTROL. Every answer cites the section it came from, with a verification date — don’t trust a percentage, click the citation.