Consumptive Use Mitigation Projects

Source Name

Lancashire

Mitigation Type

Mitigation Release    Required to notify project

Release Amount (mgd)

10

Mitigation Action

Additional discharge of 3 mgd are made if conditions are triggered for 3 consecutive days

Source Name

Cresson

Mitigation Type

Mitigation Release    Required to notify project

Release Amount (mgd)

5.7

Mitigation Action

Additional discharge of 1.94 mgd for an approximate total of 5.7 mgd are made if conditions are triggered for 3 consecutive days

Source Name

Whitney Point Lake

Mitigation Type

USACE Reservoir Releases    Required to notify project

Release Amount (mgd)

64.6

Mitigation Action

Low flow releases up to 100 cfs are made if conditions are triggered for 3 consecutive days

Source Name

Well 1 and Well 2

Docket Number

20240601

Approval Amount (mgd)

0.249

Mitigation Type

Withdrawal from Storage    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Utilize off-stream storage and reduce the combined withdrawal from Wells 1 and 2 to no more than 0.020 mgd.

Source Name

Dehart Reservoir

Mitigation Type

Conservation Release

Release Amount (mgd)

3.34

Mitigation Action

Conservation release from the Dehart Reservoir and/or payment of consumptive use mitigation fees

Source Name

Well B and Well Lb-814

Docket Number

20240605

Approval Amount (mgd)

0.3

Mitigation Type

Other

Release Amount (mgd)

n/a

Mitigation Action

Utilize approved sources that do not result in impacts to nearby surface waters

Source Name

On-site Storage Pond

Docket Number

20210911

Approval Amount (mgd)

0.2

Mitigation Type

Discontinuance    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Reduce withdrawal from the Storage Pond on UNT to West Branch Susquehanna to no more than 0.020 mgd.

Source Name

On-stream pond

Docket Number

20230605

Approval Amount (mgd)

0.099

Mitigation Type

Conservation Release

Release Amount (mgd)

0.012

Mitigation Action

Maintain a seasonal conservation release to the unnamed tributary to Watts Creek at all times.

Source Name

Conowingo Pool

Docket Number

20061209.1

Approval Amount (mgd)

49

Mitigation Type

Conservation Release

Release Amount (mgd)

n/a

Mitigation Action

Reduces Exelon's leakage credit waiver to 580 cfs for PBAPS mitigation

Source Name

Cowanesque Lake

Docket Number

20110610

Approval Amount (mgd)

19.2

Mitigation Type

USACE Reservoir Releases    Required to notify project

Release Amount (mgd)

19.2

Mitigation Action

Water supply releases of 22 cfs are made if conditions are triggered for 3 consecutive days

Source Name

Well 1, Well 2 and Irrigation Pond

Docket Number

20240606

Approval Amount (mgd)

0.099

Mitigation Type

Discontinuance    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Reduce the combined withdrawal from Wells 1 and 2 to no more than 0.020 mgd; reduce withdrawal from the Irrigation Pond to no more than 0.020 mgd; limit the maximum peak day consumptive use at the facility to no more than 0.020 mgd.

Source Name

Conodoguinet Creek

Docket Number

20231204

Approval Amount (mgd)

0.249

Mitigation Type

Withdrawal from Storage    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Utilize off-stream storage and reduce withdrawal to no more than 0.020 mgd.

Source Name

4 On-site Storage Ponds

Docket Number

20021024

Approval Amount (mgd)

0.05

Mitigation Type

Withdrawal from Storage    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Cease withdrawals from the three on-site wells and use water stored in on-site ponds

Source Name

Letterkenny Reservoir

Docket Number

19990704

Approval Amount (mgd)

1.4

Mitigation Type

Conservation Release

Release Amount (mgd)

3.2

Mitigation Action

Maintain conservation release of 3.2mgd from Letterkenny Reservoir

Source Name

Billmeyer Quarry

Mitigation Type

Mitigation Release    Required to notify project

Release Amount (mgd)

4.7

Mitigation Action

Staff to follow Stage 2 Declining Hydrologic Conditions protocol; staff to follow Stage 3 CU Mitigation Release Pending protocol; staff to follow Stage 4 Initiate CU Mitigation Release protocol.

Source Name

On-site Storage Ponds

Docket Number

20210603

Approval Amount (mgd)

0.099

Mitigation Type

Withdrawal from Storage    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Utilize off-stream storage to supplement consumptive use

Source Name

N/A

Docket Number

20220607

Approval Amount (mgd)

0.165

Mitigation Type

Discontinuance    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Reduce withdrawal from the irrigation pond to no more than 0.020 mgd.

Source Name

Fishing Creek and Public Water Supply – Veolia Water Pennsylvania, Inc.

Docket Number

20240309

Approval Amount (mgd)

0.099

Mitigation Type

Withdrawal from Storage    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Utilize off-stream storage and reduce withdrawal from Fishing Creek to no more than 0.020 mgd.

Source Name

Gentzel Quarry

Docket Number

20191203

Approval Amount (mgd)

0.72

Mitigation Type

Conservation Release

Release Amount (mgd)

1.05

Mitigation Action

Maintain conservation release of 960gpm when a flow at the Logan Branch compliance weir equal to or less than 3,700 gpm.

Source Name

Hope Lake

Docket Number

20010803

Approval Amount (mgd)

1.21

Mitigation Type

Release from Storage

Release Amount (mgd)

1.62

Mitigation Action

Adhere to a passby flow requirement of 3.5 cfs at the withdrawal point from Gridley Creek. If project releases water from Hope Lake to augment Gridley Creek flows, the project is allowed to withdraw an amount up to the quantity of water released from Hope Lake.

Source Name

Dehart Reservoir

Docket Number

20020205

Approval Amount (mgd)

0.078

Mitigation Type

Conservation Release

Release Amount (mgd)

3.34

Mitigation Action

Conservation release from the Dehart Reservoir and/or payment of consumptive use mitigation fees.

Source Name

NA

Docket Number

20230909

Approval Amount (mgd)

0.099

Mitigation Type

Discontinuance    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Utilize off-stream storage to supplement consumptive use and reduce withdrawal from Well 1 to no more than 0.020 mgd (peak day).

Source Name

Honey Run and Little Conewago Creek

Docket Number

20231207

Approval Amount (mgd)

0.2

Mitigation Type

Withdrawal from Storage    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Utilize off-stream storage and reduce withdrawal to no more than 0.020 mgd.

Source Name

Cornwall Mine Pool

Docket Number

20180908

Approval Amount (mgd)

0.95

Mitigation Type

Release from Storage    Required to notify project

Release Amount (mgd)

1.5

Mitigation Action

Release of 1.5 mgd from Cornwall Mine Pool to Conewago Creek

Source Name

Dehart Reservoir

Docket Number

20140906

Approval Amount (mgd)

0.7

Mitigation Type

Conservation Release

Release Amount (mgd)

3.34

Mitigation Action

Conservation release from the Dehart Reservoir and/or payment of consumptive use mitigation fees

Source Name

N/A

Docket Number

20220609

Approval Amount (mgd)

0.2

Mitigation Type

Discontinuance    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Reduce withdrawal to no more than 0.020 mgd.

Source Name

3 On-site Storage Ponds

Docket Number

19920909

Approval Amount (mgd)

0.788

Mitigation Type

Withdrawal from Storage

Release Amount (mgd)

n/a

Mitigation Action

3 On-site Storage Ponds

Source Name

2 On-site Storage Ponds

Docket Number

20030205

Approval Amount (mgd)

0.499

Mitigation Type

Withdrawal from Storage    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Cease withdrawals from the Susquehanna River and use water stored in on-site ponds

Source Name

Conowingo Pool

Docket Number

20010801

Approval Amount (mgd)

250

Mitigation Type

Other    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Restrict withdrawal to 84 mgd (30-day average) or 142 mgd (peak day)

Source Name

N/A

Docket Number

20200910

Approval Amount (mgd)

0.276

Mitigation Type

Discontinuance    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Reduce withdrawal from the Conestoga River to no more than 0.020 mgd and utilize off-stream storage

Source Name

4 On-site Storage Ponds

Docket Number

20001204

Approval Amount (mgd)

0.39

Mitigation Type

Conservation Release

Release Amount (mgd)

0.0396

Mitigation Action

Maintain conservation release downstream of the lowermost dam of not less than 0.061 cfs

Source Name

District No. 5 Reservoir

Docket Number

20030405

Approval Amount (mgd)

1.6

Mitigation Type

Conservation Release

Release Amount (mgd)

0.9648

Mitigation Action

Maintain continuous downstream release of water from District No. 5 Reservoir of 670 gpm.

Source Name

Cowanesque Lake

Docket Number

19881104

Approval Amount (mgd)

0

Mitigation Type

USACE Reservoir Releases    Required to notify project

Release Amount (mgd)

14

Mitigation Action

Water supply releases of 14 cfs are made if conditions are triggered for 3 consecutive days

Source Name

Chillisquaque Lake

Docket Number

19881104

Approval Amount (mgd)

0.468

Mitigation Type

Other    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Enter pre-drought preparation mode: raise Lake Chillisquaque to 595.3 - 595.5’ when flow is less than 1500 cfs; raise Lake Chillisquaque to 595.8 - 596.0’ when flow is less than 1300 cfs; raise Lake Chillisquaque to 596.5 - 596.7’ when flow is less than 1100 cfs. Enter drought operating mode when flow is less than 900 cfs: limit river withdrawals to 1) daily water volume released from USACE’s Cowanesque Reservoir for the MSES, and 2) previous days total measured volume of water discharged from the plant IWTB and STP.

Source Name

Bear Gap Reservoir #1

Docket Number

201703001

Approval Amount (mgd)

1.37

Mitigation Type

Conservation Release

Release Amount (mgd)

0.646

Mitigation Action

Maintain conservation release of 1.0 cfs from the Bear Gap Reservoir No. 1

Source Name

Curwensville Lake

Mitigation Type

USACE Reservoir Releases    Required to notify project

Release Amount (mgd)

17.8

Mitigation Action

Water supply releases of 27.5 cfs are made if conditions are triggered for 3 consecutive days

Source Name

6 On-site Storage Ponds

Docket Number

20020613

Approval Amount (mgd)

0.265

Mitigation Type

Withdrawal from Storage    Required to notify project

Release Amount (mgd)

n/a

Mitigation Action

Cease withdrawals from the stream and use water stored in on-site ponds.

Source Name

Lake Marburg

Docket Number

20170609

Approval Amount (mgd)

3.65

Mitigation Type

Release from Storage

Release Amount (mgd)

3.65

Mitigation Action

Release water from surface water storage during low flow periods in an amount equal to project consumptive use and at all times maintain a minimum streamflow

Source Name

On-site Storage Pond

Docket Number

20030403

Approval Amount (mgd)

0.1

Mitigation Type

Conservation Release

Release Amount (mgd)

0.006

Mitigation Action

Use water stored in on-site pond and maintain a conservation release of 0.009 cfs.

Source Name

On-site Storage Pond

Docket Number

20011008

Approval Amount (mgd)

0.35

Mitigation Type

Conservation Release

Release Amount (mgd)

0.006

Mitigation Action

Use water stored in on-site pond and maintain a conservation release of 0.01 cfs; this release must be maintained when flow is present upstream of the pond, and can be discontinued during any period when the stream ceases to flow above the pond.

Source Name

Un. Tributary to Crooked Lake

Docket Number

20230915

Approval Amount (mgd)

0.249

Mitigation Type

Conservation Release

Release Amount (mgd)

0.282

Mitigation Action

Maintain a seasonal conservation release to the unnamed tributary to Crooked Lake