Northlake 1nd Park-CS 921202The City With A Beautiful Future
December 2, 1992
Mr. Bill Thompson
Thompson Interest
8333 Douglas Ave., Suite 15~IIL
RE: Nort.hlake Ind.u. str!al Park- ..27 Acre Tmct~ "~
SUBJECT: Erosion and Siltation Probleln / //
Dear Mr.~nl~on: ~~
P.O. Box 478
Coppel[, Texas 75019
214-462-0022
As per our telephone conference call on November 18, 1992 among Nathan Maier, P.E.,.you,
and myself, several concerns and complaints have been made to the City regarding erosion and
drainage problems associated with activities, i.e. grading and excavation, on your subject
property. Please note that Ed Spalding of 245 E. Bethel Road, has expressed his concerns for
erosion and siltation along the natural stream running through the back of his lot to its
confluence with Grapevine Creek. (See attached location map). Mr. Spalding has indicated that
over the past few years, there have been some mining and massive grading activities on the
above referenced property (L.I. tract).
It appears that such activities are still in progress. On November 3, 1992, Engineering staff met
with Ed Spalding and Bob Bernhard, of 200 E. Bethel Road, at the downstream of the culverts.
We viewed your property from the top of the railroad tracks, and there were no evidence of any
erosion and sedimentation control measures. We also walked along the down stream section of
this natural drainage way, north of Bethel Road, on the east side of Mr. Bernhard's house. In
general, erosion and siltation along the upper and lower segments of the referenced stream were
apparent, and the existing culverts under Bethel Road are silted in for about one third of their
capacity.
Please note that although construction plans for drainage and grading improvements were
approved by the City in September 1989, it is the City's policy that approved plans are only
good for one (1) year. Also, we were unable to locate a copy of a grading pe..rmit in our fries.
Please provide a copy of such permit along with a project status report and a set of revised
grading plans related to activities on your property.
Letter to Mr. Bill Thompson
December 2, 1992
Page 2
I have spoken to Mr. Maier and his assistant, Mike Garrett, on several occasions in the past,
and recently. It is my understanding that they will discuss a course of action with you for
correcting this erosion problem and will coordinate it with the City staff.
It is important to note that in addition to the City's Erosion and Sedimentation Control Ordinance
//91514 (copy attached), there are other federal regulations in effect which construction activities
must comply with. The Clean Water Act makes it unlawful to discharge storm water from
construction sites to waters of the United States, unless authorized by a National Pollutant
Discharge Elimination System (NPDES) permit. These rules require that a Notice of Intent
(NOI) be submitted to the Environmental Protection Agency (EPA) and a Storm Water Pollution
Prevention Plan (SW3P) be prepared by .October 1, 1992. A copy of the NOI should be
provided for our files and records.
Please be advised that, due to lack of adequate vegetation on your property, and as a result of
what appears to be a massive excavation, mining and/or grading project, the velocity and the
surface drainage runoff have increased considerably. This has caused erosion and siltation
downstream.
I suggest that a meeting take place among affected City staff members, you, and Mr. Malers,
Mr. Spalding and Mr. Bernhard as soon as possible to discuss your proposed course of action.
Your timely attention given to this matter is greatly appreciated. Please provide me with a
written response prior to December 15, 1992, and I will arrange a meeting shortly after.
If I can be of any help, please give me a call at (214) 393-1016.
Sincerely,
M. Shohre Daneshmand, P.E.,
Civil Engineer
MSD/bd
CC'-
Kenneth M. Griffin, P.E., City Engineer
Greg Jones, Acting Building Inspection
Steve Goram, Director of Public Works
Larry Davis, Construction Inspector
Bob Bernhard (200 E. Bethel Road, Coppell)
Ed Spalding (245 E. Bethel Road, Coppell)
Nathan Maier, P.E., Nathan D. Maier Engineers
I I
BELT iUNE ROAD