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1
Q

Site Check Definition

A

Suspected Release - confirms or denies suspected release

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2
Q

Site Check Conditions

A
  1. Discovery of Regulated Substance
  2. UST Release method detects release
  3. Receive Direction from Ecology
  4. Offsite contamination and UST is suspected source
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3
Q

Site Assessment Definition

A

Not a suspected release - investigates whether release has occurred

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4
Q

Site Assessment Conditions

A
  1. Suspension of financial responsibility
  2. Stored substance goes from regulated to unregulated
  3. permanent closure after removal if abandoned before dec 22, 1988
  4. Permanent in place closure
  5. Extend temporary closure beyond 12 months
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5
Q

What must site assessment report include for soil characterization

A

description of soil gradient
soil classification
till material

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6
Q

Hand Augur/Soil Corer

A

Remove top 6 inches of soil
use if large rocks cemented soil and deep sample point not issue

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7
Q

Split Spoon

A

Requires a drill
cant sample in rocky conditions

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8
Q

Shelby Tube

A

Requires a drill
Collects undisturbed sample

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9
Q

Backhoe

A

Used for rocky surfaces and large quantities of debris
collect at sidewall and bottom

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10
Q

Hand Tool

A

Collect at center of bucket at least 6 inches deep
use for stock piled soil

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11
Q

Where is contamination most likely present

A

lowest point of interface between backflow material and native soil

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12
Q

Where do you collect if water is encountered

A

at the top of the water table

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13
Q

Conditions for ground water sampling

A
  1. lowest point of ust is in ground water
  2. field screening indicates release and lowest point is within 2 ft of season high water table
  3. existing wells can be collected fro
  4. observation wells indicate presence of substances
  5. physical conditions prevent soil sampling
  6. site check results indicate groundwater testing is needed
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14
Q

How many groundwater samples do you take with unknown gradient

A

4

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15
Q

how many water samples do you take when gradient is known and where

A

3 - one up and two down

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16
Q

Common contaminent phases

A
  1. vapors
  2. dissolved in groundwater
  3. absorbed to soil
  4. in soil pore space
  5. floating on groundwater
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17
Q

What is required in field sampling for QA/QC

A

one duplicate per matrix

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18
Q

What is required to ecology and when is it required if no contamination is found during site assessment

A
  1. Sight Assessment Checklist
  2. permanent closure checklist

within 30 days

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19
Q

What is required to ecology and when is it required if contamination is found during site assessment

A

SA Checklist and permanent closure checklist to ecology within 30 days.

Must give 24 hour notice to ecology of release

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20
Q

Sample Number in place tank less than 9000 cubic yards

A

3

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21
Q

Sample number in place tank greater than 9000 cubic yards

A

4

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22
Q

sample number excavated tank less than 9000 cubic yard

A

3

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23
Q

sample number excavated tank greater than 9000 cubic yards

A

5

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24
Q

Sample number multiple tanks in place less than 9000

A

4 for first tank 2 for each additional tank

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25
Q

Sample number multiple tanks excavated

A

5 for first 2 for each additional tank

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26
Q

sample number piping

A

1 every 50 feet

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27
Q

excavated soil 0-25 cy

A

1

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28
Q

excavated soil 26-50

A

2

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29
Q

excavated soil 51-100

A

3

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30
Q

excavated soil 101-500

31
Q

excavated soil 501-1000

32
Q

excavated soil 1001-2000

33
Q

excavated soil 2000+

A

10 + 1 for every additional 500 cy

34
Q

Where do you take samples for excavated tanks greater than 9000 cy

A

one at entry into the sidewall, one at the bottom, three evenly distributed to other sidewalls

35
Q

GW

A

well graded gravel

36
Q

GP

A

Poorly graded gravel

37
Q

GM

A

Silt Gravel mixture

38
Q

GC

A

Clay gravel mixture

39
Q

SW

A

Well graded sand

40
Q

SP

A

poorly graded sand

41
Q

SM

A

sand silt mixture

42
Q

SC

A

sand clay mixture

43
Q

ML

A

Silt loam mixture

44
Q

CL

A

Clay loam mixture

45
Q

OL

A

organic loam

46
Q

MH

A

elastic silts

47
Q

CH

A

inorganic clay of high plasticity

48
Q

OH

A

Organic clay of high plasticity

49
Q

PT

50
Q

Benzene soil MTCA limit

51
Q

ethlybenzene soil mtca limit

52
Q

edb soil mtca limit

53
Q

napthalene soil mtca limit

54
Q

pcb soil mtca limit

55
Q

toluene soil mtca limit

56
Q

TPH as GRO no benzene soil mtca limit

57
Q

TPH as GRO benzene detected soils mtca limit

58
Q

TPH as DRO soils mtca limit

59
Q

TPH as Heavy oils soils mtca limit

60
Q

TPH as heavy minerals soils mtca limit

61
Q

Xylenes soils mtca limit

62
Q

benzene gw mtca limit

63
Q

ethylbenzene gw mtca limit

64
Q

edb gw mtca limit

65
Q

pcb gw mtca limit

66
Q

toluene gw mtca limit

67
Q

tph as gro no benzene gw mtca limit

68
Q

tph as gro benzene detected gw mtca limit

69
Q

Tph as dro gw mtca limit

70
Q

tph as heavy oils gw mtca limit

71
Q

tph as mineral oils gw mtca limit

72
Q

xylenes gw mtca limit

73
Q

mtca soil lead cleanup limit

74
Q

mtca gw lead cleanup limit

UST (1 decks)

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