Document: NUREG-0800
Document ID: 904b56ce-40c5-4058-b0ad-837d98f63c2a
Document Type: srp
Title: PROBABLE MAXIMUM FLOOD (PMF) ON STREAMS AND RIVERS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070730405.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.3
CFR Part: 
CFR Title: 

Content:
D COMPUTATION, OR CURRENTLY ACCEPTED HYDROLOGY & HYDRAULICS MODELS. DETERMINE PLANT LOCATION & DRAINAGE AREAS OF ADJACENT STREAMS. PREPARE PROBABLE MAXIMUM PRECIPITATION (PMP) ESTIMATES OF 5, 15, & 30 MIN AND 1, 6, 12, 24, & 48 HR PRECIPITATION FOR SITE DRAINAGE & ADJACENT AREAS FROM: USE APPROPRIATE NOAA HYDROMETEOROLOGICAL REPORTS. DETERMINE WHETHER ANY BASIC DATA MISSING FROM SAR. DETERMIN DISTRIBUTION OF PMP USING APPROPRIATE NOAA HYDROMETEOROLOGICAL REPORTS. DEVELOP RUNOFF MODEL USING CURRENTLY ACCEPTED ENGINEERING METHODS DETERMINE WHETHER DRAINAGE CHANNELS USED. COMPARE WITH APPLICANT’S ESTIMATE. COMPUTE WATER LEVELS BY HAND OR USING CURRENTLY ACCEPTED FLOOD ROUTING MODELS. EVALUATE IMPOUNDMENT EFFECTS. DEVELOP STAFF POSITIONS. ATTEMPT TO RESOLVE DISAGREEMENTS WITH APPLICANT’S ESTIMATE. WRITE SER INPUT. EVALUATE APPLICANT’S RESPONSES. NO. REQUEST MISSING DATA FROM APPLICANT. YES. ESTIMATE PEAK RUNOFF RATE USING EITHER HAND COMPUTATION, OR CURRENTLY ACCEPTED HYDROLOGY & HYDRAULICS MODELS. Figure 2.4.3-2. Standard Review Plan Section 2.4.3 Site Drainage and Adjacent Drainage