20190459 Ver 1_Other Agency Correspondence_20190521

Strickland, Bev
From: Johnson, Alan
Sent: Tuesday, May 21, 2019 2:21 PM
To: Munzer, Olivia
Subject: RE: Patterson Road
Yeah, you can call it "unstable" because it "was" eroded, but actually it is now a stable channel. Depends on the review
putting in the info. And Dave isn't running the SAM. I think it is something to question.
From: Munzer, Olivia
Sent: Tuesday, May 21, 2019 12:40 PM
To: Johnson, Alan <[e-mail]>
Cc: Shaeffer, David Leigh (Dave) CIV USARMY CESAW (USA) <[e-mail]>
Subject: RE: Patterson Road
Thanks Alan for getting back to me and I got your message. Based upon the pictures, I wouldn't have thought it was low
either. It is odd how many mediums there are and then it ends up low. The steep banks even looked vegetated with
moss, etc but not just cut banks. I appreciate your time. I will finish up my comments today for the PN and get them set
out.
Olivia Munzer
Western Piedmont Habitat Conservation Coordinator
NC Wildlife Resources Commission
From: Johnson, Alan
Sent: Monday, May 20, 2019 4:19 PM
To: Munzer, Olivia <[e-mail]>
Cc: Shaeffer, David Leigh (Dave) CIV USARMY CESAW (USA) <[e-mail]>
Subject: Patterson Road
Below is the rating. Given all the high and medium, I am having a hard time seeing how it rates low (2 out of 3). 1 know
it is the way the scores feed into the matrix. But it was a typical stream. Channel stability, a change in that, could affect
the overall hydrology. It was incised/eroded, but that could have been past impact and now it is relatively stable. Flood
flow, the stream is at the top of the watershed, so not sure how important that criteria is.
In stream habitat is high, but aquatic life tolerance is low???
Given the location and the buffer on the stream and not in urban area, typically these stream tend to score at least a
medium. Surprised that this came out as low.

am Sile Name Patterson Rd
-aam Category Rbl
Draft NC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
tate of Assessment 117119
Assessor Namelfhganixation Carolina 1+ Aand Serwkme
s of Field Assessment Form (YjN) No
once of regulatory considerations {YIN) YES
Wnal stream inlormalionlsupplementary measurements induded (YRl) No
3AM feature type (perennial. intermittent. Tidal Marsh 5lrearri) Intermiltant
DWR
Dhdsifln of Watcr RC-%0Ur1LCs
Alan D Johnson — Senior Environmental Specialist
NC Dept. of Environment & Natural Resources (NCDENR)
Division of Water Resources - Water Quality Regional Operations
4
USACEI
HCOWR
Function Class Rating Summary
All Streams
Intermittent
(1) Hydrology
LOW
LOW
(2) Msetlow
HIGH
HIGH
(g) Flpp4 Flow
LOW
LOW
(3) Skreamside Area Altenualion
MEDIUM
MEDIUM
(4)FloodpminAcross
MEDIUM
MEDIUM
(4) wooded Rlperlan Buffer
HIGH
HIGH
(4) Mi[ralopograptly
NA
NA
(3) Sireem Stability
LOW
LOW
(4) Channel Slebilily
LOW
LOW
(4) Sediment Transport
MEDIUM
MEDIUM
(4)$Ueam Geomorphglpgy
MEDIUM
MEDIUM
(2) SirearnfinlerWal Zone Interamri
NA
NA
(2) Langiludirwl Tidal Flow
NA
NA
(2)Tidal Marsh Stream Stability
NA
NA
(3) Tidal Mersh Charnel S1abiYiy
NA
NA
(3) Tidal Mersh Stream Geomorphology
NA
NA
(1)Water Ouerrty
LOW
LOW
(2) Baseflpw
HIGH
H IGH
(2) Streamside Area Vegetallon
HIGH
H IGH
(3) Uplano Pollulant Fdtraklon
HIGH
HIGH
(3) Thermoregulation
HUGH
HIGH
(2) Indlcalars of Stressors
YES
YES
(2) MualiC Life Tolefar"
LOW
HA
(2) Intertidal Zane Filtration
NA
NA
(1) Habiral
HIGH
HIGH
(g) In-strearn Habitat
MEDIUM
MEDIUM
(3) BaseFlpw
HIGH
HIGH
(3) Substrate
MEDIUM
MEDIUM
(3) Stream 31.00ity
LOW
Low
(3) In -stream Habitat
HIGH
HIGH
(2)Stream-sidleHabital
HIGH
HIGH
(3) Slresm-side Habitat
HIGH
HIGH
(3) Thermoregulation
HIGH
HIGH
(2) Tidal Marsh In-sbbarn Habitak
NA
NA
(3) FIbw R4MieRm
NA
NA
(3)Tidal Marsh Stream Stability
_ NA
NA
(4) Tidal Marsh Channel Stabdity
NA
NA
(4) Tidal Marsh Slream Geomorphology
NA
NA
(3) Tidal Marsh Irt-siream Hatdat
NA
NA
(2) Interboal Zone
NA
NA
Overall
LOW
LOW
DWR
Dhdsifln of Watcr RC-%0Ur1LCs
Alan D Johnson — Senior Environmental Specialist
NC Dept. of Environment & Natural Resources (NCDENR)
Division of Water Resources - Water Quality Regional Operations
4

610 East Center Ave., Suite 301, Mooresville, NC 28115
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