WQ0040799_Staff Report_20190529 (2)

State of North Carolina
Division of Water Resources
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Water Quality Regional Operations Section
Environmental Staff Report
Quality
To: ❑NPDES Unit®Non-Discharge Unit Application No.: W00040799
Attn: Ranveer Katyal Facility name: 2617 Whistling Qual Run SFR
County: Wake
From: Cory Larsen(WCES)/Gary Kreiser
Raleigh Regional Office
Note: This form has been adapted from the non-discharge facility staff report to document the review of both non-
discharge and NPDES permit applications and/or renewals. Please complete all sections as they are applicable.
I. GENERAL AND SITE VISIT INFORMATION
1. Was a site visit conducted? ®Yes or❑ No
a. Date of site visit: 5-14-19
b. Site visit conducted by: Gary Kreiser, Cory Larsen and William Miller(WCES)
c. Inspection report attached? ❑ Yes or®No
d. Person contacted: NA and their contact information: ext.
e. Driving directions: Whistling Ouail Run in Apex
2. Discharge Point(s):
Latitude: Longitude:
Latitude: Longitude:
3. Receiving stream or affected surface waters:
Classification:
River Basin and Sub-basin No.
Describe receiving stream features and pertinent downstream uses:
H. PROPOSED FACILITIES: NEW APPLICATIONS
I. Facility Classification: SFR (Please attach completed rating sheet to be attached to issued permit)
Proposed flow: 480 GPD
Current permitted flow:
2. Are the new treatment facilities adequate for the type of waste and disposal system? ®Yes or❑No
If no, explain:
3. Are site conditions(soils, depth to water table, etc.) consistent with the submitted reports? ® Yes ❑ No ❑N/A
If no,please explain:
4. Do the plans and site map represent the actual site (property lines,wells, etc.)? ❑ Yes ®No ❑N/A
If no, please explain: Property has not been subdivided and recorded with Wake County Register of Deeds.
5. Is the proposed residuals management plan adequate? ® Yes❑No ❑N/A
If no,please explain:
FORM:WQROSSR 04-14 Page I of 6

6. Are the proposed application rates(e.g., hydraulic, nutrient)acceptable? ❑Yes ®No ❑N/A
If no;please explain: Applicaiton rate is based on a 25% flow reduction and improperly calculated Ksats affected
the water balance and allowable application rate.
7. Are there any setback conflicts for proposed treatment, storage and disposal sites? ❑Yes or®No
If yes, attach a map showing conflict areas.
8. Is the proposed or existing groundwater monitoring program adequate? ❑ Yes ❑No ®N/A
If no, explain and recommend any changes to the groundwater monitoring program:
9. For residuals,will seasonal or other restrictions be required? ❑ Yes ❑No ®N/A
If yes, attach list of sites with restrictions(Certification B)
Describe the residuals handling and utilization scheme:
10. Possible toxic impacts to surface waters:
11. Pretreatment Program(POTWs only):
M.EXISTING FACILITIES: MODIFICATION AND RENEWAL APPLICATIONS
1. Are there appropriately certified Operators in Charge(ORCs) for the facility? ❑Yes ❑No ❑N/A
ORC: Certificate#: Backup ORC: Certificate#:
2. Are the design, maintenance and operation of the treatment facilities adequate for the type of waste and disposal
system? ❑Yes or❑No
If no,please explain:
Description of existing facilities:
Proposed flow:
Current permitted flow:
Explain anything observed during the site visit that needs to be addressed by the permit, or that may be important
for the permit writer to know(i.e., equipment condition, function, maintenance, a change in facility ownership,
etc.)
3. Are the site conditions (e.g., soils,topography, depth to water table, etc.)maintained appropriately and adequately
assimilating the waste? ❑Yes or❑ No
If no,please explain:
4. Has the site changed in any way that may affect the permit(e.g., drainage added, new wells inside the compliance
boundary,new development, etc.)? ❑ Yes or❑No
If yes,please explain:
5. Is the residuals management plan adequate? ❑ Yes or❑No
If no,please explain:
6. Are the existing application rates(e.g.,hydraulic,nutrient) still acceptable? ❑ Yes or❑No
If no,please explain:
7. Is the existing groundwater monitoring program adequate? ❑ Yes❑No ❑N/A
If no, explain and recommend any changes to the groundwater monitoring program:
8. Are there any setback conflicts for existing treatment, storage and disposal sites? ❑Yes or❑No
If yes, attach a map showing conflict areas.
9. Is the description of the facilities as written in the existing permit correct? ❑ Yes or❑No
If no, please explain:
10. Were monitoring wells properly constructed and located? ❑ Yes ❑ No ❑N/A
If no,please explain:
FORM:WQROSSR 04-14 Page 2 of 6

11. Are the monitoring well coordinates correct in BIMS? ❑ Yes ❑No ❑N/A
If no,please complete the following ex and table if necessary):
Monitoring Well Latitude Longitude
O , „ O ,
11
O , „ O ,
11
O , It O ,
11
O , „ O ,
11
O , „ O ,
12. Has a review of all self-monitoring data been conducted(e.g.,DMR,NDMR,NDAR, GW)? ❑ Yes or❑No
Please summarize any findings resulting from this review:
Provide input to help the permit writer evaluate any requests for reduced monitoring, if applicable.
13. Are there any permit changes needed in order to address ongoing BIMS violations? ❑ Yes or❑No
If yes, please explain:
14. Check all that apply:
❑No compliance issues ❑ Current enforcement action(s) ❑ Currently under JOC
❑Notice(s) of violation ❑ Currently under SOC ❑ Currently under moratorium
Please explain and attach any documents that may help clarify answer/comments (i.e.,NOV,NOD, etc.)
If the facility has had compliance problems during the permit cycle,please explain the status. Has the RO been
working with the Pemrittee? Is a solution underway or in place?
Have all compliance dates/conditions in the existing permit been satisfied? ❑ Yes ❑No ❑N/A
If no,please explain:
15. Are there any issues related to compliance/enforcement that should be resolved before issuing this permit?
❑Yes ❑No ❑N/A
If yes,please explain:
16. Possible toxic impacts to surface waters:
17. Pretreatment Program(POTWs only):
FORM:WQROSSR 04-14 Page 3 of 6

IV.REGIONAL OFFICE RECOMMENDATIONS
1. Do you foresee any problems with issuance/renewal of this permit? ®Yes or❑No
If yes,please explain: Additional information needed.
2. List any items that you would like the NPDES Unit or Non-Discharge Unit Central Office to obtain through an
additional information request:
Item Reason
Lot recordation Lot has not been divided and recorded with Wake County.
Application proposes 480 GPD treatment capability but only 380 GPD disposal
capacity. Flow reduction basis was not provided and WCES does not
Flow Reduction recommend approval for SFR based on 02T SFR rules that dictate flows based
on#bedrooms,not occupants which may change with time. (note that the
home is being built for property owners'children,not themselves).
Saturated hydraulic conductivity data appears to have been arbitrarily thrown
out in the geometric mean calculation resulting in a greater Ksat value and
Ksats potential] over-estimated allowable application rate. This calculation must be
revised to include all Ksat data from the most restrictive horizon at each nested
location.
The field visit and soil report indicate areas with less than 12-inch separation to
Fill Plan the SHWT thus requiring fill to meet the rule requirement. No fill plan was
provided,and the disposal area cannot be permitted without enough separation.
3. List specific permit conditions recommended to be removed from the permit when issued:
Condition Reason
4. List specific special conditions or compliance schedules recommended to be included in the permit when issued:
Condition Reason
5. Recommendation: Hold,pending receipt and review of additional information by regional office
❑Hold,pending review of draft permit by regional office
A
❑ Issue upon receipt of needed additional information
❑ Issue
❑ Deny(Please state reasons: )
6. Signature of report preparer: 5/23/19
FORM:WQROSSR 04-14 Page 4 of 6

Signature of regional supervisor: �®
Date:
FORM:WQROSSR 04-14 Page 5 of 6