C_-_Permits.pdf

WATER AND/OR SEWERAGE CONSTRUCTION PERMIT

Permit No.: 23-12:16-1145 Date Issued: 7/17/2025 Permit Fee: N/A Expiration Date: 7/17/2028

This permit authorizes Charles County DPW to construct a well building improvements together with all appurtenances, at the site of 12599 Mattawoman Drive, Charles County, in accordance with an application dated November 16, 2023, and received by the Maryland Department of the Environment on November 30, 2023, titled in part:

MATTAWOMAN BEANTOWN WELL BUILDING IMPROVEMENTS

CHARLES COUNTY, MARYLAND

PROJECT NO. 12576080

DRAWING SHEETS NOS. 1 THRU 42 OF 42

AND SPECIFICATIONS

THIS PERMIT IS ISSUED SUBJECT TO THE ATTACHED FOLLOWING CONDITIONS:

Note: This permit may be suspended or revoked upon a final, unreviewable determination that the permittee lacks, or is in violation of federal, state or local approval necessary to conduct the activity authorized by this permit.

Walid Saffouri, P.E., Program Administrator Engineering & Capital Projects Program Water and Science Administration

GENERAL CONDITIONS FOR WATER OR SEWERAGE CONSTRUCTION PERMIT

- The structural adequacy and expected performance characteristics of the various components are not certified by this permit.

- This permit is not transferable.

- A copy of this permit must be posted at the work site during construction.

- This permit will expire, if not specifically extended, unless the construction authorized under this permit has been initiated. The permit will then remain valid for the remainder of construction for a period of up to five years from the start of construction.

- If any provision of this permit shall be held invalid for any reason, the remaining provisions shall remain in full force and effect, and such invalid provision shall be considered severed and deleted from this permit.

- Persons violating the requirements of this permit are subject to penalties of up to $1000 per day as set forth in Environment Article 9-268 and 9-334 through 9-342, Annotated Code of Maryland.

- A copy of the plans and specifications, authorized for use under this permit, shall be made available at the work site during construction of this project. A revised construction permit in accordance with COMAR

26.03.12 is required prior to making substantive changes or material alteration to the construction authorized under this permit.

- The owner shall secure all Federal, State or local permits, including approval of Sedimentation and Erosion Control Plans that may be required before starting the construction of the project.

- The owner shall insure that this project is inspected during the progress of construction to assure substantial compliance with the approved plans and specifications. A log and construction records shall be maintained by the inspector and may be requested for review at any time by this office.

- The project engineer of the Maryland Department of the Environment (the ‘Department’) shall be notified prior to the start of construction.

- Inspectors of the Department shall be afforded access to the project site, at reasonable times and upon presentation of credentials:

a. to inspect construction authorized under this permit and to determine compliance with applicable regulations;

b. to have access to and copy any records required to be kept by this permit and by applicable regulations;

and

c. to obtain any photographic documentation or evidence.

- Within 60 days after completion of construction, a copy of as-built drawings and the attached construction completion certificate (page 3 of this permit) shall be submitted to the Department. Where construction was completed in accordance with the original plans approved under this permit, the submittal of as-built drawings will not be required.

- The owner shall maintain a permanent record of the as-built drawings, or the original plans if as-built drawings are not required.

6/2022

GENERAL CONDITIONS (CONTINUED)

- Pursuant to Labor & Employment Article 9-201, the owner shall ensure that the contractor and subcontractors involved in the construction of this project must carry workers’ compensation insurance for their employees. If the owner determines to perform the project construction by his/her labor force, the owner shall provide the same. If the entity, undertaking the project construction, is not covered by a workers’ compensation policy, a Certificate of Compliance shall be submitted and approved by the Workers’ Compensation Commission before initiation of the construction.

- Approval must be obtained from the Department before this project may be placed into service. Any exception allowing partial use of this project shall have the prior written approval of the Department. Approval may be obtained pursuant to the following procedure:

a. Where large political subdivisions, commissions, authorities etc. have their own inspection capabilities

(satisfactory to the Department), the attached construction completion certificate shall be completed by the director of Public Works or similar responsible person and submitted to the Department.

b. Where an acceptable local construction inspection program does not exist, the attached construction completion certification shall be completed by a Professional Engineer licensed to practice in the State of Maryland (preferably the same engineer whose seal and signature appear on the plans approved under this permit) and submitted to the Department.

c. Upon receipt of the signed certificate, the Department shall, within (30) working days of the receipt, 1) issue an approval, 2) require further review and on-site inspection or 3) reject the construction certification.

Approval shall be automatic for projects that have not received some form of written notification from the Department within (30) working days of receipt of the signed certificate.

23-12:16-1145 Edward Brown Permit Number Edward Brown Project Engineer Engineering & Capital Projects Program

WATER AND SEWER CONSTRUCTION COMPLETION CERTIFICATION

The undersigned certifies that the construction authorized by this permit has been completed and inspected and that it substantially meets the terms of Environment Article 9-204, Annotated Code of Maryland.

Signature Title Date

The above project has been accepted by the Department within the terms of Environment Article 9-204, Annotated Code of Maryland.

Authorized Official Date

Complete this certificate and return to:

Maryland Department of the Environment Engineering & Capital Projects Program (ECPP) Office of Budget and Infrastructure Financing 1800 Washington Boulevard Baltimore, MD 21230 06/2022

NOTICE

Prior to starting construction, please notify Edward Brown, Project Engineer, by email at edward.brown1@maryland.gov. Upon completion of the project, the construction must be certified with the signed permit returned to this office along with a set of as-built drawings.

Should you have any questions concerning the permit or its conditions, please contact me at (410) 537-3757 or at walid.saffouri@maryland.gov.

Sincerely, Walid Saffouri, P.E., Program Administrator Engineering and Capital Projects Program Water and Science Administration

March 6, 2024

CERTIFIED MAIL – 7017 1450 0000 3645 6557

Return Receipt Requested

Charles County Commissioners Department of Public Works 5310 Hawthorne Road La Plata MD 20646

RE: State Water Appropriation and Use Permit No. CH1970G009(16)

Dear Permittee:

Enclosed is your State Water Appropriation and Use Permit. The Permittee is responsible for complying with all permit conditions. Accordingly, you are advised to carefully read the Permit and become thoroughly familiar with its requirements.

A semi-annual Water Withdrawal Report is required by this permit. Forms for making this report will be mailed to you in June and December of each year and shall be submitted to this office by the following July and January respectively. If you have any questions, please contact this office at (410) 537-3590.

Sincerely, Robert Peoples Water Supply Program cc: Charles County Health Department

CONTINUED ON PAGE 2

STATE OF MARYLAND

DEPARTMENT OF THE ENVIRONMENT

WATER AND SCIENCE ADMINISTRATION

WATER APPROPRIATION AND USE PERMIT

Permit Number: CH1970G009(16)

Effective Date: March 15, 2024

Expiration Date: February 29, 2036

First Appropriation: April 1, 1970

CHARLES COUNTY COMMISSIONERS

Hereinafter referred to as the “Permittee”, is authorized by the Water and Science Administration, hereinafter referred to as the “Administration” pursuant to the provisions of Title 5 of the Environment Article, Annotated Code of Maryland (2013 replacement volume) as amended, to appropriate and use waters of the State subject to the following conditions:

1. Allocation - The water withdrawal granted by this permit is limited to:

A daily average of 3,400,000 gallons on a yearly basis and A daily average of 4,400,000 gallons for the month of maximum use.

2. Use - The water is to be used for the Waldorf community water system.

3. Source - The water shall be taken from ten wells in the Magothy aquifer: Piney Church (CH- 73-2889), Towne Plaza (CH-81-0135), Pinefield (CH-73-2423), Mattawoman/Beantown (CH- 04-2572), Billingsley-M (CH-04-2573), Westwood Drive (CH-81-2310), John Hanson (CH- 73-1750), St. Charles (CH-70-0087), Cleveland Park (CH-14-0368) , and St. Charles Tower

(CH-19-0352).

4. Location - The point(s) of withdrawal shall be located at St. Charles Tower, Piney Church, Towne Plaza, Pinefield, Mattawoman/Beantown, Billingsley-M, Westwood Drive, John Hanson, St. Charles, and Cleveland Park, Waldorf, Charles County, Maryland.

PERMIT NUMBER CH1970G009(16)

PAGE NUMBER: 2

CONTINUED ON PAGE 3

5. Right of Entry - The Permittee shall allow authorized representatives of the Administration access to the Permittee's facility to conduct inspections and evaluations necessary to assure compliance with the conditions of this permit. The Permittee shall provide such assistance as may be necessary to effectively and safely conduct such inspections and evaluations.

6. Permit Review - The Permittee will be queried every three years (triennial review) regarding water use under the terms and conditions of this permit. Failure to return the triennial review query will result in suspension or revocation of this permit.

7. Permit Renewal - This permit will expire on the date indicated on the first page of this permit.

In order to renew the permit the Permittee shall file a renewal application with the Administration no later than 45 days prior to the expiration.

8. Permit Suspension or Revocation - This permit may be suspended or revoked by the Administration upon violation of the conditions of this permit, or upon violation of any regulation promulgated pursuant to Title 5 of the Environment Article, Annotated Code of Maryland (2013 Replacement Volume) as amended.

9. Change of Operations - Any anticipated change in appropriation which may result in a new or different use, quantity, source, or place of use of water shall be reported to the Administration by the Permittee by submission of a new application.

10. Additional Permit Conditions - The Administration may at anytime (including triennial permit review or when a change application is submitted) revise any condition of this permit or add additional conditions concerning the character, amount, means and manner of the appropriation or use, which may be necessary to properly protect, control and manage the water resources of the State. Condition revisions and additions will be accomplished by issuance of a revised permit.

11. Drought Period Emergency Restrictions - If the Administration determines that a drought period or emergency exists, the Permittee may be required under the Department's direction to stop or reduce water use. Any cessation or reduction of water use must continue for the duration of the drought period or emergency, or until the Administration directs the Permittee that water use under standard permit conditions may be resumed.

12. Non-Transferable - This permit is non-transferable. A new owner may acquire authorization to continue this appropriation by filing a new application with the Administration. Authorization will be accomplished by issuance of a new permit.

13. Flow Measurement - The Permittee shall measure all water used by a method which accurately reflects the quantity withdrawn.

PAGE NUMBER: 3

CONTINUED ON PAGE 4

14. Withdrawal Reports - The Permittee shall submit to the Administration, semi-annually (July- December, no later than January 31st and January-June, no later than July 31st), pumping records. These records shall show the total quantity of water withdrawn each month under this permit.

15. Access for Measuring Water Level / Sampling Raw Water - In order that water levels can be measured during pumping and nonpumping periods in any well(s) authorized by this permit, well pumps/pumping equipment shall be installed in a manner that will accommodate measuring water level(s) without any adjustment/dismantling of the well pump/pumping equipment. An opening for tape measurements of water shall have a minimum inside diameter of 0.5 inches and be sealed by a removable cap or plug. In order to obtain raw water samples from any well(s) authorized for use by this permit, a tap shall be made available before the water enters a treatment facility, pressure tank, or storage tank.

16. Well Pump Placement - For any well(s), the Permittee shall not place a submersible well pump or water intake part of the well pump lower than the top of the confined aquifer from which the water is being withdrawn.

17. Water Conservation Plan Implementation - The Permittee must implement the “Water Conservation Plan Waldorf System” dated July 19, 2022. A report detailing the activities that are ongoing or were completed over the past year shall be submitted to the Administration annually by December 31 of each year.

18. Notice of Complaint and Investigation - Upon receipt of a complaint that a water supply has been adversely impacted, which may be due to the withdrawal authorized by this permit, the Permittee shall notify the Administration of the complaint and the location of the impacted water supply within twenty four (24) hours. Upon receipt of a complaint the Permittee shall immediately commence a preliminary investigation to determine whether the Permittee's withdrawal could be responsible for the impacts to the affected water supply.

Within ten (10) days of receipt of the complaint that a water supply has been adversely impacted, the Permittee shall notify the Administration, in writing, of the findings of the investigation and, if necessary, all corrective actions taken or to be taken to address the impacts to the affected water supply. All corrective actions shall include a milestone date of when it was or will be completed. If the complaint involves an increase in turbidity in the water supply, the Permittee shall have a State certified water sampler collect a water quality sample from the affected water supply and have the sample analyzed by a State certified laboratory.

Other information regarding the affected well(s) to be included in the investigative report is as follows: the property owner name and address and type of water supply (well, spring, pond, etc.), the well tag number (if on the well or available from the County Environmental Health Department), the total depth of the well, any notable well construction information, the depth of the pump setting, and a water level measurement with reference location for measurement (i.e. top of casing) and time and date of measurement(s).

PAGE NUMBER: 4

CONTINUED ON PAGE 5

(condition no. 18 continued)

In addition, information regarding the dates, times, and rates that the well(s) authorized by this permit was used for the thirty days prior to and including the date of the complaint shall be included in the investigation report.

19. Impacts to Wells - If the Administration determines that other water user(s) in the regional area of the withdrawal are unreasonably impacted by the water appropriation authorized by this permit, the Permittee shall within twenty-four (24) hours provide bottled water for drinking and, if required by the Administration, a tanker for other uses. The Administration may require the Permittee to replace or retrofit the water supply well of an impacted user or take other corrective measures. In addition, the Administration may require the Permittee to reduce and/or cease its water withdrawals to temporarily eliminate an unreasonable impact on other users or to allow the Administration to investigate to determine if the Permittee’s use is causing an unreasonable impact on a nearby water supply well.

An individual domestic water supply which has been determined by the Administration to be adversely impacted by the withdrawal authorized by this permit shall be considered adequately replaced when the Permittee provides a new or retrofitted well, or alternative water supply approved by the Administration and the County Environmental Health Department. A new or retrofitted well shall meet the minimum yield requirements established in COMAR

26.04.04.26 and approval of use requirements established in COMAR 26.04.04.30, and County Environmental Health Department approval.

Any non-domestic water supply which has been determined by the Administration to be adversely impacted by the withdrawal authorized by this permit shall be considered adequately replaced when the Permittee provides a new or retrofitted well or other alternative water supply approved by the Administration and County Environmental Health Department. A new or retrofitted well shall be capable of yielding water at the same quantity and quality of water used or needed by the property owner/entity in the five years prior to the water supply disruption. A new or retrofitted non-domestic water supply for potable uses must also meet the approval of use requirements in COMAR 26.04.04.30.

If the water supply interruption is not of a temporary nature, the Permittee shall provide a permanent retrofitted/replacement water supply of a sufficient quantity and quality for the required use within a reasonable time, not to exceed 60 days.

20. Expenses - The Permittee shall be responsible for all expenses associated with investigating a complaint, providing bottled water, water tankers, and/or the satisfactory retrofit/replacement of the affected water supply(ies).

PAGE NUMBER: 5

21. Capacity Management Plan - The Permittee shall complete and submit to the Administration a Water Supply Capacity Management Plan (WSCMP) developed in accordance with the most current MDE guidance. The WSCMP shall be submitted to the Administration for review and comment annually by December 31 of each year.

22. Water Audit – The Permittee shall conduct an annual water audit, in accordance with MDE's most recent "Guidance for Preparing Water Audits and Water Loss Reduction Plans", to determine the amount of unaccounted or unmeasured water loss. The guidance can be found on MDE’s website or by contacting the Water Supply Program. The annual audit for the previous calendar year must be submitted to the Administration for approval by June 30 of each year.

23. Water Loss Reduction Plan – The Permittee shall submit a water loss reduction plan for each year that the annual water audit indicates a water loss greater than ten percent of the total net water produced. The water loss reduction plan must be prepared in accordance with MDE's most recent "Guidance for Preparing Water Audits and Water Loss Reduction Plans". The guidance can be found on MDE’s website or by contacting the Water Supply Program. A water loss reduction plan must be submitted to the Administration for approval by December 31 of any year in which the water loss for the previous calendar year exceeded ten percent. The plan must be implemented, upon approval by MDE.

24. Notifications, Plans and Reports– All required written notifications, plans and/or reports shall be submitted by the Permittee or their designee to the Administration. Written notification may include notification by email or mail. Notification shall be made to the address shown below:

water.supply@maryland.gov OR Division Chief, Source Protection & Water Appropriation Division Water Supply Program 1800 Washington Blvd Baltimore, MD 21230

25. Permit Supersession - This permit supersedes the Appropriation and Use granted by the following prior permit(s) issued to:

CHARLES COUNTY COMMISSIONERS effective on July 1, 2016 (CH1970G009(15))

Gregory C. Busch, P.E. Date Program Manager Water Supply Program

November 6, 2023

Andrew Frazier GHD, Inc.

14501 George Carter Way Chantilly, VA 20151

RE: Mattawoman Beantown Well House

PGM# CSWM-230015

SED# 54-23

2nd Review

Dear Mr. Frazier, We have completed our review of your 2nd submission accepted on 10/25/23 in accordance with the Stormwater Management Ordinance and procedures established in the Plan Preparation Package.

Please note that all submissions are to be electronically submitted through the Citizens Self Service Portal (CSS). To resubmit electronically on the CSS, please visit www.charlescountymd.gov/energov for instructions. After the resubmission has been uploaded in Energov, please notify Virginia Cooper via email at cooperm@charlescountymd.gov to inform about the resubmission.

SPECIAL NOTE: Please combine the drawings set into a single PDF that includes all the drawing sheets. However, if the file size exceeds 75MB, you must create a minimum series of PDFs for the drawing sheets by technical groupings. This file size limitation is also applicable for other documents, such as reports, etc.

Please be informed that the Concept Stormwater Management plan is being approved subject to the following conditions and/or comments to be satisfactorily addressed at Step 2.

STORMWATER MANAGEMENT REVIEW COMMENTS: Abbie Coplin– NMP 410-771-9808 acoplin@nmpengineering.com/Randy Crowder 301-885-1305 crowderr@charlescountymd.gov

A. General:

1. Advisory: All embankments designed to impound water, except Chapter 5 micro-scale devices with a drainage area less than 0.5 acres, must be designed and constructed in accordance with Pond Code MD 378 or Chapter 3 of the Manual as appropriate. Review and approval of facilities requiring MD 378 approval will be performed by Charles County Soil Conservation District.

http://www.charlescountymd.gov/energov mailto:cooperm@charlescountymd.gov mailto:crowderr@charlescountymd.gov tjunker Highlight Please be informed that the Concept Stormwater Management plan is being approved subject to the following conditions and/or comments to be satisfactorily addressed at Step 2.

P a g e | 2 Mattawoman Beantown Well House

PGM# CSWM-230015

SED# 54-23

2nd Review

2. Reminder: Please be reminded that soils boring and a geotechnical report for the proposed SWM facilities are required at Step 2.

3. Advisory retained for Step 2: It appears that the proposed storm water management facilities will discharge across the proposed access road to facilities owned and maintained by SHA.

Please be advised that SHA must approve discharges to their facilities prior to issuance of the Step 3 Development Services Permit. Please acknowledge.

B. Plans :

1. Pre- and Post-Development Stormwater Management Plans (C005):

a) The micro-bioretention details have been provided with this submittal, but the as-built tables, and other MDE required notes and tables still need to be included at Step 2.

b) At Step 2, please provide additional contour elevations along the northeast edge of the drainage area to confirm the drainage area delineation. Please note that this includes any rooftop drainage from the KDs Klubhouse building to northwest.

c) At Step 2, please provide adequate freeboard for the proposed micro-biorientation facilities.

Note 6” is the standard.

d) At Step 2, please provide maintenance access to the any proposed SWM facility features including riser structures and proposed inflows.

C. Report:

1. Appendix A:

a) The general site information tables do not match the tables in the narrative. Please update the tables to match at Step 2.

b) Advisory: The stage storage tables used to develop the ESDv may be provided in the computations at Step 2 but will be required at Step 3.

ZONING: Cyndi Bilbra 301-645-0649 bilbrac@charlescountymd.gov

Approved.

PLANNING: John Sartschev 301-645-0721 sartschj@charlescountymd.gov

Approved with condition:

1. Environmental Planning does not object to the Concept Stormwater Management Plan. However, the applicant is advised that this review does not constitute final environmental planning approval of this project. Compliance with all applicable County, State (Forest Conservation), and Federal regulations will be required for any and all subsequent applications and/or submissions associated with all phases and components of this project.

mailto:bilbrac@charlescountymd.gov mailto:sartschj@charlescountymd.gov

P a g e | 3

PGM# CSWM-230015

SED# 54-23

2nd Review

SOIL CONSERVATION DISTRICT REVIEW COMMENTS: Luis Dieguez 301-638-3028

The plans submitted on October 25, 2023, for the Revised Concept Design Phase of the Environment Site Design process have been reviewed. The Charles Soil Conservation District offers no additional comments to be considered prior to submitting plans for the Site Development review phase. Previous comments still apply and are shown below for reference.

The developer is responsible for the acquisition of all easements, rights, and/or right of way that may be required for the sediment and erosion control practices, storm water management practices and the discharge of storm water onto or across adjacent or downstream properties included in this plan. He or she is also responsible for the acquisition of all easements, rights and/or rights of way that may be required for grading and/or work on adjacent properties included in this plan.

A sediment and erosion control plan must be submitted for the Site Design Phase, showing how it overlays and interacts with the SWM plan. Realistic limits of disturbance, including adequate stockpile and staging area, should be included. The formal sediment and erosion plan review and approval will be carried out at the time of the Final Design Phase submittal and must be submitted directly to the Charles Soil Conservation District under separate cover.

The plan shows areas consisting of highly erodible soils and/or steep slopes which may be disturbed. Future sediment and erosion control plans must address the limitations of these soil types. Any runoff discharge from the developed site must not be directed onto highly erodible soils and/or steep slopes. It is recommended that the discharge from temporary and permanent outfalls be conveyed and discharged onto flatter slopes and/or a stable outlet. An outfall analysis with computations demonstrating non erosive rates must also be submitted.

Approval for the Concept Design plan submitted on October 25, 2023, is hereby granted by the Charles Soil Conservation District.

A final review fee in the amount of $2,344.16 ($2,134.00 Concept SWM review, $120.00 SCD review, and $90.16 Technology Fee) is required.

The final review fee in the amount of $2,344.16 will be charged to DPW-Utilities account.

Please provide electronic copies of the revised approved plan (in “PDF” format), SWM report (“PDF” format) and any other documents on one (1) compact disc within two (2) weeks of the date of this letter and/or prior to the submission of the Site SWM Plan.

Please note that according to the Stormwater Management Ordinance and the established PGM procedures (PGM Public Policy & Procedure Notice# 10-19) you may now proceed to the next step in the SWM plan review process. The procedures for submission of the Site SWM Plan are those established in the current Plan Preparation Package (Appendix 14) and PGM Public Policy & Procedure Notice# 17-1. The content of the Step 2 Site Stormwater Management Plan is listed in

P a g e | 4

PGM# CSWM-230015

SED# 54-23

2nd Review

Section 9.2 C. of the Stormwater Management Ordinance and must include the Soils Report per Section 9.2.C.f.

Also, please provide a copy of this letter with a written response, if necessary, when you submit the Step 2 Site SWM Plan.

If you have any questions concerning stormwater management comments for this project, please contact Abbie Coplin– NMP 410-771-9808 acoplin@nmpengineering.com /Randy Crowder 301-885-1305 crowderr@charlescountymd.gov.

Sincerely, Randy Crowder Engineer III Infrastructure Management cc: Applicant Luis Dieguez - SCD Abbie Coplin - NMP Cyndi Bilbra John Sartschev Reading File

F:\PGMS1\CPIS\DS\WPFILES\PLNREVW\COM23\CSWM 23\CSWM-230015\CSWM-230015-APPROVAL.DOCX mailto:crowderr@charlescountymd.gov CrowderR Stamp

June 17, 2026

Kelvin George kelvin.george@ghd.com GHD, Inc.

16701 Melford Boulevard Suite 221 Bowie, MD 20715

Re: Mattawoman Beantown Well House

PGM#RDSP-260007

2nd Review Dear Mr. George, We have completed our 2nd review of your submission accepted on 05/20/2026, in accordance with prevailing standards and sound engineering practices.

Please note that all submissions are to be electronically submitted through the Citizens Self Service Portal (CSS). To submit electronically on the CSS, please visit www.charlescountymd.gov/energov for instructions.

After the resubmission has been uploaded in Energov, please notify Virginia Cooper via email at cooperm@charlescountymd.gov to inform about the resubmission.

SPECIAL NOTE: Please combine the drawings set into a single PDF that includes all the drawing sheets.

However, if the file size exceeds 75MB, you must create a minimum series of PDFs for the drawing sheets by technical groupings. This file size limitation is also applicable for other documents, such as reports, etc.

The following must be adequately addressed prior to final approval. We offer the following comments:

GENERAL PLAN PREPARATION (PPP) REVIEW COMMENTS: Matt Pohlhaus - IMEG 240-296-1569 Matt.W.Pohlhaus@imegcorp.com/Mat Karim 301-645-0596 karimm@charlescountymd.gov

1. The following Charles County Plan Preparation checklist items must be addressed:

Section II.B.4.a Reminder: Please provide binding on the final approved paper plan sets as required by the PPP. Assure a 1.25” left margin per PPP II.B.(4)(a).

2. Repeat, see previous comment #4. Thank you for providing a differential cost estimate with the cost of the proposed revisions. However, there are no demolition costs indicated in the roadway section of the cost estimate for the sidewalk pavement removal. Please revise the estimate as needed.

PGM#RDSP-260007

2nd Review

GRADING REVIEW COMMENTS: Matt Pohlhaus - IMEG 240-296-1569 Matt.W.Pohlhaus@imegcorp.com/Mat Karim 301-645-0596 karimm@charlescountymd.gov

Approved with conditions.

1. Repeat: Please show the additional disturbed area in the cost estimate, not the total quantity with the area from DSP-240043. It should be 0.346 - 0.338 = 0.008 acres. The differential cost estimate still indicates

0.000 acres of disturbed area and a cost of $0.00.

STORM DRAINAGE/WATER & SEWER/FLOODPLAIN:

N/A

TRANSPORTATION:

Approved.

ZONING/ENVIRONMENTAL PLANNING/ADEQUATE PUBLIC FACILITIES:

Approved.

Please remit payment online in the amount of $826.88 for review fees, inspections fees, and a technology fee.

Mailed or In-person payments shall be made payable to the Charles County Commissioners. NOTE: The invoice must be provided for all mailed or in-person payments.

All conditions outlined in the approval letter must be fully addressed. Once completed, the final plans, supporting reports, and a comment response letter must be uploaded to the Citizens Self Service Portal (CSS).

The plans will be electronically signed, and you will be notified when printed copies may be produced.

Once notified, please submit three (3) printed copies of the electronically signed plans, along with a copy of the issued permit, to the Inspections Department no later than seven days prior to the preconstruction meeting. A final cd is no longer required.

To submit electronically on the CSS, please visit www.charlescountymd.gov/energov for instructions. After the submission has been uploaded, please notify Virginia Cooper via email at cooperm@charlescountymd.gov to inform about the resubmission.

NOTE: Combine the drawings set into a single PDF that includes all the drawing sheets. However, if the file size exceeds 75MB, you must create a minimum series of PDFs for the drawing sheets by technical groupings.

This file size limitation is also applicable for other documents, such as reports, etc.

PGM#RDSP-260007

2nd Review

In accordance with adopted policy, this revision to a previously issued Development Services permit application must be issued by 7/17/2026 or the application will be voided.

Should you have any questions, please contact Virginia Cooper 301-645-0618 cooperm@charlescountymd.gov

Sincerely, Damion Lampley, P.E.

Engineering Supervisor Infrastructure Management

CC: Miranda Tison – IMEG Matt Pohlhaus – IMEG Hunter Zinn Katelyn Kluh Kelly Palmer Reading File

F:\PGMS1\CPIS\DS\WPFILES\PLNREVW\COM26\RDSP\RDSP-260007APPROVAL.DOCX

THE MARYLAND DEPARTMENT OF TRANSPORTATION

STATE HIGHWAY ADMINISTRATION (MDOT SHA)

138 Defense Highway Annapolis, MD 21401

District Office Permit

Permit Number: SHA-5-CH-0417-26-DO U.C. Ref or Job ID#: WELL HOUSE

Project Number: ENTRANCE

Route No.: MD 5 Route Name (optional):

MATTAWOMAN BEANTOWN RD -

MD 5

to Limits : MATTAWOMAN DR - MD 5 K MATTAWOMAN

DR - MD 5 K

, Mile Point : 13.646 13.646

Issue Date : 7/13/2026 Expiration Date : 7/13/2027

Anticipated Start Date : Duration of Work :

So far as the MDOT State Highway Administration has the right and power to grant same, permission is hereby given to:

Permittee : Attention :

Charles County Government Ahmed Alqazzaz

200 Baltimore Street Phone#: (301) 932-3440 P.O. Box 2150 Email: alqazzaza@charlescountymd.gov LaPlata, MD 20646

Description of Work:

THE PROPOSED MICRO-BIORETENTION FACILITY IS TREATING THE WELL HOUSE

DEVELOPMENT WHICH IS THE IMPERVIOUS AREAS OUTSIDE OF SHA R/W. THE

DEVELOPMENT IS ALSO REDUCING THE EXISTING DISCHARGE FROM THE SITE ONTO MD

5K. THERE IS NO ADVISE IMPACT THEREFORE THE HIGHWAY HYDRAULIC DIVISION OF

SHA FINDS THE DISCHARGE ACCEPTABLE.

The following Special Conditions apply to this permit.

Permittee must communicate with the MDOT/SHA Utility Inspector one (1) week prior to the commencement of work being executed under this permit to discuss Maintenance of Traffic.

An approved MDOT/SHA Traffic Control Permit shall be required prior to commencement of work.

All facilities must be placed in accordance with current MDOT/SHA's "Accessibility Policy & Guidelines for Pedestrian Facilities Along State Highways".

All excavation outside of paved section shall be backfilled using suitable material as stated in the MDOT/SHA Specification Book (current revision) or approved by MDOT/SHA Utility Inspector.

Steel Plates - All excavation in MDOT/SHA State Right-of-Way shall be backfilled or plated daily. All steel plates shall be recessed, pegged on all four (4) corners, properly shimmed/wedged, and filled around the edges to provide smooth transition. If more than one plate is utilized adjacent to each other, they shall be supported from the underside and tack welded to prevent flexing and shifting. All steel plates shall have identification. Inspections of steel plates must occur twice daily using approved MDOT/SHA Inspection Report. Any steel plate placed between December 1st and March 30th, shall have pre-approval from MDOT/SHA Utility Inspector and paving restoration plan/schedule must be identified.

Cold Mix Asphalt is PROHIBITED unless approved by MDOT SHA Utility Inspector. Only approved cold patch materials (CPM) identified on the MDOT/SHA List of Qualified Products is approved for use on Maryland State roadways. CPM’s are only to be utilized as a temporary repair until full roadway restoration can be achieved.

All test pits shall be backfilled with dry/fresh material. Excavated material shall not be used as backfill material. Test pits shall be monitored weekly by the Permittee until permanent repair is completed.

Trench repair less than six (6’) feet in width will require a two (2') foot cut back in accordance with MDOT/SHA Standard 578.01 using an approved dry/fresh backfill material as specified in the MDOT/SHA Specification Book or per the MDOT/SHA Utility Inspector.

ROADWAY RESTORATION: All backfill must be compacted and tested. Compaction reports must be provided to SHA (trenches of a 1000’ or longer). Roadway repair may require a (2") inch grind and overlay a minimum of (20') feet (max. 250') feet on each side of excavation as directed by MDOT/SHA Utility Inspector. If permanent patch is not compatible to existing roadway, patch will be grinded (2") inches in depth and (20') feet on each side of patch, the entire width of the lane(s) and overlaid using an approved MDOT/SHA Hot Mix Asphalt (HMA) or as directed by MDOT/SHA Utilities Inspector. Any temporary roadway patch placed between October 30th and April 15th must consist of at least (6") inches HMA and monitored weekly by Permittee until permanent repair is completed. All roadway patches MUST have spray painted identification.

Pavement section must be patched using 19 mm PG64-22 base course HMA and (2") inches surface course 12.5mm PG64-22 HMA or as directed by MDOT/SHA Utility Inspector.

Notifications:

a. Permittee must notify , the MDOT State Highway Administration , at or ,pjames1@mdot.maryland.gov 48 hours prior to commencement of any activities related to this permit.

b. The permittee will designate the Traffic Manager for this permit and a 24 hour emergency number at the pre-construction meeting.

c. All work for this permit shall be in conformance with the above referenced documentation supplied by the utility company.

d. The Permittee is to provide Geographic Information System (GIS) coordinates of any of itsrequested facilities, infrastructure, and appurtenances installed within the permitted area(s) to MDOT SHA District Office within Sixty (60) calendar days (or agreed upon timeline) of the completion of the Permittee’s

By: _________________________

TRAN, KIMBERLY

District Engineer MDOT State Highway Administration installation. The GIS coordinates should be provided on or other agreed uponAs Constructed Plans mechanism. Please see the Section 001.03.03.06 2022 UTILITY PERMIT GENERAL PROVISIONS, As Constructed Deliverables.

THIS PERMIT IS ISSUED WITH THE REQUIREMENT THAT IT WILL BE ENFORCED WITH THE

UTILITY PERMIT GENERAL PROVISIONS. A COPY OF THE UTILITY PERMIT GENERAL

PROVISIONS SHALL BE ATTACHED TO EACH AND EVERY INDIVIDUAL WORK ORDER

PERMIT ALONG WITH ANY SPECIAL PROVISIONS, ATTACHMENTS, PLANS, AND ADDENDA IN

ORDER TO CONSTITUTE A COMPLETE AUTHORIZED UTILITY PERMIT. THE COMPLETE

AUTHORIZED UTILITY PERMIT OR DISTRICT OFFICE PERMIT WHICH MUST BE FOUND ON

THE JOB SITE AT ALL TIMES.

August 21, 2024

Ashton Rogers, P.E.

GHD, Inc.

16701 Melford Blvd.

Suite 330 Bowie, MD 20715

RE: Mattawoman Beantown Well House

PGM# SSWM-240012

SED# 61-23

3rd Review

Dear Mr. Rogers, We have completed our review of your 3rd submission accepted on 08/06/24 in accordance with the Stormwater Management Ordinance and procedures established in the Plan Preparation Package.

Please note that all submissions are to be electronically submitted through the Citizens Self Service Portal (CSS). To resubmit electronically on the CSS, please visit www.charlescountymd.gov/energov for instructions. After the resubmission has been uploaded in Energov, please notify Virginia Cooper via email at cooperm@charlescountymd.gov to inform about the resubmission.

SPECIAL NOTE: Please combine the drawings set into a single PDF that includes all the drawing sheets. However, if the file size exceeds 75MB, you must create a minimum series of PDFs for the drawing sheets by technical groupings. This file size limitation is also applicable for other documents, such as reports, etc.

Please be informed that the Site Stormwater Management Plan for the referenced project has been approved with the following conditions. Please address these conditions as part of the first submission of the Step 3 Development Services Permit. Remember to include a written response to these conditions as part of the submission.

STORMWATER MANAGEMENT REVIEW COMMENTS: Austin Eckert– NMP 410-771-9808 aeckert@nmpengineering.com/Randy Crowder 301-885-1305 crowderr@charlescountymd.gov

A. General:

1. Reminder: It appears that the proposed stormwater management (SWM) facilities will discharge to facilities owned and maintained by SHA. Please be advised that SHA must approve discharges to their facilities prior to issuance of the Step 3 Development Services Permit.

http://www.charlescountymd.gov/energov mailto:cooperm@charlescountymd.gov mailto:crowderr@charlescountymd.gov tjunker Highlight Please be informed that the Site Stormwater Management Plan for the referenced project has been approved with the following conditions. Please address these conditions as part of the first submission of the Step 3 Development Services Permit. Remember to include a written response to these conditions as part of the submission.

PGM# SSWM-240012

SED# 61-23

3rd Review

B. Plans:

1. General: Include the DLLR Professional Certification adjacent to the seal on the plans.

2. It is unclear why the plan and report both show that a 5-minute Tc was used in the computations, when the pre/post drainage area maps show Tc paths with several segments (note that the post development Tc shows sheet flow in a swale which is incorrect). Please be reminded that if a 5-minute Tc is assumed (minimum for SCS method is 0.1 hr.) the assumption must be reasonable and justifiable. Please review to ensure that Tc’s reflect the longest hydrologic path and reconcile when the design is finalized in Step 3

3. .

C. Report:

1. There does not appear to be structure data included in the post-development Civil Storm hydraulic model - please include.

2. Please add-hyd the different points of study rather than summing the peak flows.

3. Hydraulic Model: Include the land-use calculations for review.

4. Hydraulic Model: Include the Tc calculations (also see comment B.2).

PGM# SSWM-240012

SED# 61-23

3rd Review

ZONING: Kelly Palmer 301-638-2408 palmerk@charlescountymd.gov

Approved.

ENVIORNMENTAL PLANNING: Kyle Redden 301-645-0688 reddenk@charlescountymd.gov

Approved with condition:

1. Environmental Planning does not object to the Step 2 Stormwater Management Plan. However, the applicant is advised that this review does not constitute final environmental planning approval of this project. Compliance with all applicable County, State, and Federal regulations will be required for any and all subsequent applications and/or submissions associated with all phases and components of this project.

SOIL CONSERVATION DISTRICT REVIEW COMMENTS: Luis Dieguez 301-638-3028

The plans submitted on August 5, 2024, for the 2nd Revised Site Design Phase of the Environment Site Design process have been reviewed. The Charles Soil Conservation District offers no additional comments to be considered when submitting plans for the Final Engineering review phase. Previous comments still apply and are shown below for reference.

• For the Final Development erosion and sediment control plan submittal, designate which SWM facilities are designed with an infiltration/recharge component and which SWM facilities are not.

The footprint of future SWM facilities with an infiltration/recharge component must be protected from sediment-laden runoff and construction traffic prior to, during, and after excavation of the BMP. SWM facilities that do not have an infiltration/recharge component must be protected from sediment-laden runoff and construction traffic after the filtering media is installed. Silt fence and filtering cloth are not acceptable controls for the purpose of preventing sediment-laden water from entering SWM facility locations during construction. Consider diversion fence or other conveyance practices to bypass water around the SWM facility during construction.

This is a new comment in response to updated clarification guidance from MDE regarding the protection of future SWM facilities during the E&S phase. Please find the updated guidance on MDE’s website:

https://mde.maryland.gov/programs/water/stormwatermanagementprogram/pages/erosionsedim entcontrol.aspx

The Final erosion and sediment control plan should clearly address protection of future SWM facilities per this guidance document and the comment below.

• The proposed sediment and erosion control plan should be developed and must include all standard requirements as found in the Charles Soil Conservation District Erosion and Sediment Control Plan Review Checklist. All proposed sediment controls must meet the latest Maryland mailto:palmerk@charlescountymd.gov mailto:reddenk@charlescountymd.gov https://mde.maryland.gov/programs/water/stormwatermanagementprogram/pages/erosionsedimentcontrol.aspx https://mde.maryland.gov/programs/water/stormwatermanagementprogram/pages/erosionsedimentcontrol.aspx

P a g e | 4

PGM# SSWM-240012

SED# 61-23

3rd Review

Department of the Environment, Standards and Specifications for Soil Erosion and Sediment Control. The formal sediment and erosion plan review and approval will be carried out at the time of the Final Design Phase submittal and must be submitted directly to the Charles Soil Conservation District under separate cover.

• The developer is responsible for the acquisition of all easements, rights, and/or right of way that may be required for the sediment and erosion control practices, storm water management practices and the discharge of storm water onto or across adjacent or downstream properties included in this plan. He or she is also responsible for the acquisition of all easements, rights and/or rights of way that may be required for grading and/or work on adjacent properties included in this plan.

• The plan shows areas consisting of highly erodible soils and/or steep slopes which may be disturbed. Future sediment and erosion control plans must address the limitations of these soil types. Any runoff discharge from the developed site must not be directed onto highly erodible soils and/or steep slopes. It is recommended that the discharge from temporary and permanent outfalls be conveyed and discharged onto flatter slopes and/or a stable outlet. An outfall analysis with computations demonstrating non erosive rates must also be submitted.

Approval for the 2nd Revised Site Design plan submitted on August 5, 2024, is hereby granted by the Charles Soil Conservation District.

A final review fee in the amount of $3,344.25 ($2,996.00 Concept SWM review, $189.00 SCD review, and $159.25 Technology Fee) is required.

Therefore, a $3,344.25 check made payable to the Charles County Commissioners is required to be paid within thirty (30) days of this letter. NOTE: When making a payment the invoice must be provided.

Please submit one (1) compact disc (CD) of plans in “PDF” format. All reports, studies, forms, and specifications shall be provided in “pdf” format and shall be separate files on the disc. All plans and reports shall be labeled as Site SWM and contain the above referenced PGM# SSWM-240012.

This needs to be submitted within thirty (30) days of the date of this letter.

Please note that according to established Planning & Growth Management procedures (Green Notice# 10-19) you may proceed to the next step of the swm plan review process. The Final Stormwater Management Plans may be submitted to Codes, Permits & Inspection Services Division by applying for a Development Services Permit (DSP) according to standard plan submission procedures.

Also, please provide a copy of this letter with a written response, if necessary, when you submit the Development Services Permit Plans (step 3).

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PGM# SSWM-240012

SED# 61-23

3rd Review

If you have any questions concerning stormwater management comments for this project, please contact Austin Eckert– NMP 410-771-9808 aeckert@nmpengineering.com/Randy Crowder 301- 885-1305 crowderr@charlescountymd.gov.

Sincerely, Randy Crowder Engineer III Infrastructure Management cc: Applicant Luis Dieguez - SCD Austin Eckert - NMP Kelly Palmer Kyle Redden Reading File

F:\PGMS1\CPIS\DS\WPFILES\PLNREVW\COM24\SSWM\SSWM-240012\SSWM-240012-APPROVAL.DOCX mailto:crowderr@charlescountymd.gov CrowderR Stamp