EIRONMENTAL NV ASSESSMENT IN ACCORDANCE WITH …...EIRONMENTAL NV ASSESSMENT IN ACCORDANCE WITH THE CITY OF AUSTIN LAND DEVELOPMENT CODE FOR THE GENERAL AVIATION AVENUE TRACT, TRAVIS

ENVIRONMENTAL ASSESSMENT IN ACCORDANCE WITH THE CITY OF AUSTIN LAND DEVELOPMENT CODE FOR THE GENERAL AVIATION AVENUE TRACT, TRAVIS COUNTY, TEXAS

REYNOLDS, SMITH, AND HILLS INC.

ZEPHYR ENVIRONMENTAL CORPORATION

APPENDIX B

SITE PHOTOGRAPHS



ZEPHYR ENVIRONMENTAL CORPORATION A-1

SITE PHOTOGRAPHS

Photograph 1 – Looking southeast from northwest corner of subject area.

Photograph 2 –Looking east from northwest corner of subject area.




Photograph 3 – Looking south from northwest corner of subject area.

Photograph 4 – Looking west from inside northern portion of subject area.




Photograph 5 – Looking southeast from inside northern portion of subject area at fenced

man-made detention ponds.

Photograph 6 – Looking north along drainage way in eastern portion of subject area at

man-made drainage canal.




Photograph 7 – Looking south along drainage way in eastern portion of subject area at

man-made drainage canal.

Photograph 8 – Looking west from drainage way in eastern portion of subject area.




Photograph 9 – Looking north from near southeast corner of subject area at man-made

drainage canal.

Photograph 10 – Looking east from near southeast corner of subject area across man-

made drainage canal towards airport tarmac.




Photograph 11 – Looking west from near southeast corner of subject area.

Photograph 12 – Looking east from near southern boundary of subject area.




Photograph 13 – Looking south from near southern boundary of subject area.

Photograph 14 – Looking north from near southern boundary of subject area.




Photograph 15 – Looking east from near southwest corner of subject area.

Photograph 16 – Looking north from near southwest corner of subject area.




Photograph 17 – Looking west from near southwest corner of subject area.

Photograph 18 – Looking south from near southwest corner of subject area.




Photograph 19 – Looking east from near the northern boundary of the subject area.

Photograph 20 – Looking south from near the northern boundary of the subject area.




APPENDIX C

COA CRITICAL ENVIRONMENTAL FEATURE WORKSHEET

EN

VIR

ON

ME

NT

AL

AS

SE

SS

ME

NT

IN

AC

CO

RD

AN

CE

WIT

H T

HE

CIT

Y O

F A

US

TIN

LA

ND

DE

VE

LO

PM

EN

T C

OD

E

FO

R T

HE

GE

NE

RA

L A

VIA

TIO

N A

VE

NU

E T

RA

CT, T

RA

VIS

CO

UN

TY, T

EX

AS

RE

YN

OL

DS, S

MIT

H,

AN

D H

ILL

S I

NC

.

ZE

PH

YR

EN

VIR

ON

ME

NT

AL

CO

RP

OR

AT

ION

B

-1

SIT

E R

EV

IEW

CR

ITIC

AL

EN

VIR

ON

ME

NT

AL

FE

AT

UR

E W

OR

KS

HE

ET

1

Pro

ject

Nam

e:

AB

IA –

GA

Develo

pm

ent

5

Prim

ary

Con

tact

Nam

e:

Nath

ania

l S

. G

rang

er,

PE

2

Pro

ject A

ddre

ss:

Em

ma B

row

nin

g A

venu

e

6

Phon

e N

um

ber:

512-2

79-5

444 x

544

4

3

Date

: 8/8

/201

3

7

Pre

pare

d b

y:

Zeph

yr

Envir

on

menta

l

4

Enviro

nm

enta

l A

ssessm

ent

Date

8/1

/201

3

8

CE

FS

Locate

d? (

yes,

no)

NO

9

FE

AT

UR

E T

YP

E

(Wetland,

Rim

rock,

Recharg

e

Featu

re,

See

p,

Spring)

FE

AT

UR

E

ID

(eg S

-1)

FE

AT

UR

E L

ON

GIT

UD

E

(WG

S 1

984 in M

ete

rs)

co

ord

ina

te

n

ota

tio

n

FE

AT

UR

E L

AT

ITU

DE

(WG

S 1

984 in M

ete

rs

coord

inate

nota

tion

WE

TLA

ND

DIM

EN

SIO

NS

(ft

)

X

Y

RIM

RO

CK

DIM

EN

SIO

NS

(ft

)

Len

gth

Avg H

eig

ht




APPENDIX D

USACE WETLAND DATA SHEETS

US Army Corps of Engineers Great Plains – Interim Version

WETLAND DETERMINATION DATA FORM – Great Plains Region

Project/Site: General Aviation Avenue Tract City/County: Austin, Travis County Sampling Date: 8/1/2013

Applicant/Owner: Reynolds, Smith, and Hills, Inc. State: Texas Sampling Point: 1

Investigator(s): Zephyr Environmental – Clay V. Fischer Section, Township, Range:

Landform (hillslope, terrace, etc.): terrace Local relief (concave, convex, none): none Slope (%): 1

Subregion (LRR): 86A Texas blackland prairie Lat: 30.180991N Long: 97.665657W Datum: UTM NAD83 Zone14N

Soil Map Unit Name: Lewisville silty clay NWI classification: Upland

Are climatic / hydrologic conditions on the site typical for this time of year? Yes X No (If no, explain in Remarks.)

Are Vegetation Soil , or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No

Are Vegetation Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)

Hydrophytic Vegetation Present? Yes No X

Hydric Soil Present? Yes No X

Wetland Hydrology Present? Yes No X

Is the Sampled Area

within a Wetland? Yes No X

Remarks: Does not satisfy the required criteria to be a wetland.

VEGETATION

Absolute Dominant Indicator Tree Stratum (Plot size: 30x30 ) % Cover Species? Status

1. Melia azedarach 3 No FACU

2.

3.

4.

5.

3 = Total Cover Sapling/Shrub Stratum (Plot size: 30x30 )

1. Sapindus saponaria 5 No FACU

2.

3.

4.

5.

5 = Total Cover Herb Stratum (Plot size: 30x30 )

1. Cynodon dactylon 90 Yes FACU

2. Sorghum halepense 5 No FACU

3. Solanum triquetrum 2 No NL

4. Bothriochloa laguroides 2 No FACU

5.

6.

7.

8.

9.

10.

99 = Total Cover Woody Vine Stratum (Plot size: 30x30 )

1.

2.

% Bare Ground in Herb Stratum 1 1 = Total Cover

Dominance Test worksheet:

Number of Dominant Species That Are OBL, FACW, or FAC (excluding FAC-): 0 (A)

Total Number of Dominant Species Across All Strata: 1 (B)

Percent of Dominant Species That Are OBL, FACW, or FAC: 0 (A/B)

Prevalence Index worksheet:

Total % Cover of: Multiply by:

OBL species x 1 =

FACW species x 2 =

FAC species x 3 =

FACU species 105 x 4 = 420

UPL species x 5 =

Column Totals: 105 (A) 420 (B)

Prevalence Index = B/A = 4

Hydrophytic Vegetation Indicators:

Dominance Test is >50%

Prevalence Index is 3.01

Morphological Adaptations1 (Provide supporting

data in Remarks or on a separate sheet)

Problematic Hydrophytic Vegetation1 (Explain)

1Indicators of hydric soil and wetland hydrology must

be present, unless disturbed or problematic.


Remarks: Data site does not meet the required criteria for hydrophytic vegetation.


SOIL Sampling Point: 1

Profile Description:

Depth Matrix Redox Features (inches) Color (moist) % Color (moist) % Type

1 Loc

2 Texture Remarks

0-17 10YR 4/2 100 rootletts and gravel


1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.

2Location: PL=Pore Lining, M=Matrix.

Hydric Soil Indicators: Indicators for Problematic Hydric Soils3:

Histosol (A1) Sandy Gleyed Matrix (S4) 1 cm Muck (A9) (LRRI, J)

Histic Epipedon (A2) Sandy Redox (S5) Coast Prairie Redox (A16) (LRR F, G, H)

Black Histic (A3) Stripped Matrix (S6) Dark Surface (S7) (LRR G)

Hydrogen Sulfide (A4) Loamy Mucky Mineral (F1) High Plains Depressions (F16)

Stratified Layers (A5) (LRR F) Loamy Gleyed Matrix (F2) (LRRH outside of MLRA 72 & 73)

1 cm Muck (A9) (LRR F, G, H) Depleted Matrix (F3) Reduced Vertic (F18)

Depleted Below Dark Surface (A11) Redox Dark Surface (F6) Red Parent Material (TF2)

Thick Dark Surface (A12) Depleted Dark Surface (F7) Other (Explain in Remarks)

Sandy Mucky Mineral (S1) Redox Depressions (F8) 3Indicators of hydrophytic vegetation and

2.5 cm Mucky Peat or Peat (S2) (LRR G, H) High Plains Depressions (F16) wetland hydrology must be present,

5 cm Mucky Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) unless disturbed or problematic.

Restrictive Layer (if observed):

Type:

Depth (inches): Hydric Soil Present? Yes No X

Remarks: Data site does not meet the required criteria for hydric soils.

HYDROLOGY

Wetland Hydrology Indicators:

Primary Indicators (minimum of one is required; check all that apply) Secondary Indicators (minimum of two required)

Surface Water (A1) Salt Crust (B11) Surface Soil Cracks (B6)

High Water Table (A2) Aquatic Invertebrates (B13) Sparsely Vegetated Concave Surface (B8)

Saturation (A3) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10)

Water Marks (B1) Dry-Season Water Table (C2) Oxidized Rhizospheres on Living Roots (C3)

Sediment Deposits (B2) Oxidized Rhizospheres on Living Roots (C3) (where tilled)

Drift Deposits (B3) (where not tilled) Crayfish Burrows (C8)

Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Saturation Visible on Aerial Imagery (C9)

Iron Deposits (B5) Thin Muck Surface (C7) Geomorphic Position (D2)

Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) FAC-Neutral Test (D5)

Water-Stained Leaves (B9) Frost-Heave Hummocks (D7) (LRR F)

Field Observations:

Surface Water Present? Yes No X Depth (inches):

Water Table Present? Yes No X Depth (inches):

Saturation Present? Yes No X Depth (inches): (includes capillary fringe)


Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:

Remarks: Data site does not meet the required criteria for wetland hydrology.








Soil Map Unit Name: Lewisville silty clay NWI classification: Upland







Is the Sampled Area



VEGETATION


1. Prosopis glandulosa 10 No FACU

2.

3.

4.

5.


1. Sapindus saponaria 5 No FACU

2.

3.

4.

5.




3.

4.

5.

6.

7.

8.

9.

10.


1.

2.

% Bare Ground in Herb Stratum 1 = Total Cover







OBL species x 1 =

FACW species x 2 =

FAC species x 3 =


UPL species x 5 =

















1 Loc

2 Texture Remarks


















Type:



HYDROLOGY













Field Observations:














Soil Map Unit Name: Altoga silty clay NWI classification: Upland







Is the Sampled Area



VEGETATION


1.

2.

3.

4.

5.


1. Prosopis glandulosa 1 No FACU

2.

3.

4.

5.




3.

4.

5.

6.

7.

8.

9.

10.


1.

2.

% Bare Ground in Herb Stratum 0 0 = Total Cover







OBL species x 1 =

FACW species x 2 =

FAC species x 3 =


UPL species x 5 =

















1 Loc

2 Texture Remarks


















Type:



HYDROLOGY













Field Observations:







Documents

EIRONMENTAL NV ASSESSMENT IN ACCORDANCE WITH …...EIRONMENTAL NV ASSESSMENT IN ACCORDANCE WITH THE CITY OF AUSTIN LAND DEVELOPMENT CODE FOR THE GENERAL AVIATION AVENUE TRACT, TRAVIS