Landscape Drainage Calculations Form

LANDSCAPE DRAINAGE CALCULATIONS FORM

Project and Parties

Assessment Date:

Recitals

WHEREAS, Client requires professional drainage calculations and design recommendations for the Project identified above for the purpose of controlling surface runoff, preventing erosion, and reducing adverse impacts to adjacent properties; and

WHEREAS, Consultant represents that it possesses the technical qualifications, experience, and licensing necessary to prepare hydrologic and hydraulic computations and to provide recommendations consistent with accepted engineering practice; and

WHEREAS, the parties agree that Consultant will perform calculations and provide deliverables as described in the Scope of Work below, subject to the terms and conditions of this form.

Scope of Work

Consultant shall perform drainage calculations and prepare a written technical memorandum that documents hydrologic inputs, methods, assumptions, peak flow calculations, required on-site storage, and recommended outlet sizing. Deliverables shall include calculation narratives, supporting worksheets, tabulated results, and sketches sufficient for permitting and construction layout unless otherwise stated herein.

Site Data & Hydrologic Inputs

Design Storm Selection (check all that apply):

10-year    25-year    100-year

Calculation Summary

Method: Consultant will use the Rational Method (Q = C I A) or other approved hydrologic method as appropriate. Results summarized below.

Payment Terms

Consultant shall be compensated for services performed under this Agreement as set forth below.

Term and Termination

This Agreement commences on the Service Start Date and continues until completion of the Scope of Work unless earlier terminated in accordance with this section.

Either party may terminate for material breach if the other party fails to cure within the notice period above. Termination does not relieve Client of payment for work performed and reasonable close-out costs.

Confidentiality

Each party shall treat information designated as confidential by the other party as proprietary and shall not disclose such information except to employees, contractors, or regulatory authorities with a need to know. Confidential information does not include information in the public domain or independently developed without use of the other's confidential information.

Governing Law & Entire Agreement

This Agreement shall be governed by and construed in accordance with the laws of the state in which the Project is located, without regard to conflict of law provisions. The parties consent to the jurisdiction and venue of the courts located therein for disputes arising from this Agreement.

This document constitutes the entire agreement between the parties with respect to the subject matter herein and supersedes all prior oral or written communications. Any amendments must be in writing and signed by both parties.

Certifications

Consultant certifies that the calculations were prepared or reviewed by a qualified professional and reflect the conditions and inputs provided at the time of analysis. Calculations are advisory and do not replace site verification or regulatory approval requirements.

By signing below, the parties acknowledge receipt of the foregoing information, agree that the data supplied is accurate to the best of their knowledge, and consent to the terms and conditions set forth in this form.

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