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Home My WebLink AboutSWA000097_OMA signed_20210323 , Project Name: Hennessy International Warehouse Project Location:14301 N NC Highway 87, Elon, NC 27244 Cover Page Maintenance records shall be kept on the following SCM(s). This maintenance record shall be kept in a log in a known set location. Any deficient SCM elements noted in the inspection will be corrected,repaired,or replaced immediately. These deficiencies can affect the integrity of structures,safety of the public,and the pollutant removal efficiency of the SCM(s). The SCM(s)on this project include(check all that apply&corres onding O&M sheets will be added automatically): Infiltration Basin Quantity: Location(s): Infiltration Trench Quantity: Location(s): Bioretention Cell Quantity: Location(s): Wet Pond Quantity: Location(s): Stormwater Wetland Quantity: Location(s): Permeable Pavement Quantity: Location(s): Sand Filter Quantity: 1 Location(s): 36°13'12.35"N& 79°30'50.97"W Rainwater Harvesting Quantity: Location(s): Green Roof Quantity: Location(s): Level Spreader-Filter Strip Quantity: Location(s): Proprietary System Quantity: Location(s): Treatment Swale Quantity: Location(s): Dry Pond Quantity: Location(s): Disconnected Impervious Surface Present: No Location(s): User Defined SCM Present: No Location(s): Low Density Present: No Type: I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for each SCM above,and attached O&M tables. I agree to notify NCDEQ of any problems with the system or prior to any changes to the system or responsible party. Responsible Party: John Hagfors Title&Organization: Hennessy International Street address: 485 Allsal Road#212 City,state,zip: Solvang,CA,93463 Phone number(s). 805.693.8880 Email: HN@HE ESSYINTERNATIONAL.COM g / f Si nature: ,✓'' Date: a Notary Public for the State of County of do hereby certify that personally appeared before me this day of and acknowledge the due execution of the Operations and Maintenance Agreement. Witness my hand and official seal, Seal My commission expires STORM-EZ 2/10/2021 Version 1.5 O&M Agreement Page 1 of 3 CALIFORNIA ACKNOWLEDGMENT CIVIL CODE§1189 LA notary public orother officer completing this certificate verifies onlythe identityotthe individual who signed theo which this certificate is attached,and not the truthfulness,accuracy,or validity of that document. State of California County of ®✓(a On 4=t ..._before me, " ~ Here Insert Name and Title of the�,,e, personally appeared __—.. --- --- Name(s)of Signer(s) who proved to me on the basis of satisfactory evidence to be the person(s)whose name(sU/are subscribed to the within instrument and acknowledged to me that /she/they executed the same m S�i her/their authorized capacity(ies),and that b is/ er/their signature(s)on the instrument the person(s),or the entity upon behalf of which the person(s)acted,executed the instrument. I certify under PENALTY OF PERJURY under the v .d laws of the State of California that the foregoing v s�ram ram° d� ter CCtlAt (OrtF 4.S Aimr�xiF BRA`{'F(RNA paragraph y ..n.l )ais true an correct. Ct7 v �t,' C�U{V'1Y Ui cy= z�2022 WITNESS m hand and office I seal. ama+,nmaa Signatu e Place Notary Seal and/or Stamp Above Signature of Notary Public --- OPTIONAL _ —. ......_. Completing this information can deter alteration of the document or fraudulent reattachment of this form to an unintended document. Description of Attached Document Title or Type of Document: — Document Date:__...... —.._._._ —_..__Number of Pages:_ Signer(s)Other Than Named Above: —_. ---.-- - Capacity(ies)Claimed by Signer(s) Signer's Name: —__..— Signer's Name: —_.. ❑Corporate Officer-Title(s):—__.._ ❑Corporate Officer-Title(s): ❑ Partner- ❑ Limited ❑ General ❑ Partner- ❑ Limited ❑ General ❑ Individual ❑ Attorney in Fact ❑ Individual ❑ Attorney in Fact ❑ Trustee ❑ Guardian or Conservator ❑ Trustee ❑ Guardian or Conservator n Other: __—.__..._. ❑Other: —_ Signer is Representing:_..._..—------ Signer is Representing:..__._ d�3iC"�+1r56^£:t1253t�rTF�kY £>'�P14#v�i{fi5t�k�s465a�,v,�i�ft�£;�-k�'Q3i�4s�i�'Yzs'k42 '�5�tli2?(S3�f� '#i'��S+�t��kd�iSG�'+S#�Rt&�.?u3(�}h3�fift±��t��i"e�nPr�t� tC3t�t'��@ (02019 National Notary Association Sand Filter Maintenance Requirements Important operation and maintenance procedures: - Manage the drainage area to reduce the sediment load to the sand filter. Clean out the sedimentation chamber or forebay whenever sediment depth exceeds six inches. At least once a year, skim the sand media Replace the sand filter media whenever it fails to function properly after maintenance. After the sand filter is established, it shall be inspected quarterly and within 24 hours after every storm event greater than 1.0 inches(or 1.5 inches if in a Coastal County). Records of operation and maintenance shall be kept in a known set location and shall be available upon request. Inspection activities shall be performed as follows.Any problems that are found shall be repaired immediately. SCM element: Potential problem: How to remediate the problem: Entire sand filter Trash/debris is present. Remove the trash/debris. Adjacent pavement(if Sediment is present on the Sweep or vacuum the sediment as soon as possible. applicable) pavement surface. Areas of bare soil and/or Regrade the soil if necessary to remove the gully, plant ground erosive gullies have cover and water until it is established. Provide lime and a one- The perimeter of the sand formed. time fertilizer application. filter Vegetation is too short or Maintain vegetation at an appropriate height. too long. The structure is clogged. Unclog the structure and dispose of sediment in a location where The flow diversion it will not cause impacts to streams or the SCM. structure(if applicable) Make any necessary repairs or replace if the damage is too much The structure is damaged. for repair. The inlet pipe is clogged(if Unclog the pipe and dispose of sediment in a location where it will applicable). not cause impacts to streams or the SCM. The inlet pipe is cracked or otherwise damaged(if Repair or replace the pipe. applicable). The inlet device Regrade the swale if necessary and provide erosion control Erosion is occurring in the devices such as reinforced turf matting or riprap to avoid future swale(if applicable). problems with erosion. Stone verge is clogged or Remove sediment and clogged stone and replace with clean covered in sediment(if stone. applicable). Sediment has accumulated Search for the source of the sediment and remedy the problem if to a depth of greater than possible. Remove the sediment and dispose of it in a location six inches. where it will not cause impacts to streams or the SCM. Sediment chamber (forebay) Provide additional erosion protection such as reinforced turf Erosion has occurred. matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If a pesticide is used, wipe it on the plants rather than spraying. Sand Filter Malntenance Requirements(continued) SCM element: Potential problem: How to remediate the problem: Sand chamber and Water is ponding on the Check to see if the collector system is clogged and flush if underdrain collection surface for more than 24 necessary. If water still ponds, remove the top few inches of filter system hours after a storm. bed media and replace. If water still ponds,then consult an appropriate professional. Clogging has occurred. Clean out the outlet device and dispose of sediment in a location gg g The outlet device where it will not cause impacts to streams or the SCM. The outlet device is Repair or replace the outlet device. damaged. Erosion or other signs of damage have occurred at Repair the damage and improve the flow dissipation structure. the outlet. The receiving water Discharges from the sand filter are causing erosion or Contact the local NCDEQ Regional Office. sedimentation in the receiving water.