CITY OF POINT ARENA WASTEWATER
TREATMENT FACILITY
P.O. BOX 67
POINT ARENA, CA 95468 (707) 882-2700 Date: 11/10/2025
ATTN: Lynett Shipsey
CRWQCB - North Coast Region
5550 Skylane Boulevard Suite A
Santa Rosa, CA 95403
Dear NCRWQCB,
Here is Point Arena's report for the month of October 2025. The plant was in compliance with all discharge requirements. During this month we have maintained the required freeboard, at all times, in all of our percolation ponds.
There were no blockages or overflows in the collection system during the month of October 2025.
I certify under penalty of law that this document and all attachments were prepared under my direction in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering the information, the information submitted, is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine or imprisonment for knowing violations.
Respectfully,
Joseph C. Wilson
Operator, Point Arena W.W.T.P.
ORDER No. R1-2022-0015
Molly Haviland
City Manager
City of Point Arena
CITY OF POINT ARENA
WASTEWATER RECLAMATION FACILITY
ORDER NO. R1-2022-0015
(MONTH INF EFF EFFLUENT TESTING
Oct-25 TFLOW MGD FLOW MGD RAIN BOD ] NFR | PH CLRES COL SSML/L| Lab PH 1 0.03 0
2 0.021 0.184946 0 7.3 26 7.38 11 ND/<1.8 <.1 7.19
3 0.026
4 0.022 0 0
5 0.023 0
6 0.028 0.148
7 0.031 0 0
0.024 0
0.026 0.283578 0 ND/<5 32 7.82 11 ND/<1.8 < 1 7.7
10 0.027 0 1
11 0.038 0 0.2
12 0.028 0 0.3
13 0.027 0
14 0.033 0.3
15 0.027 0.161277 0.1 9.2 25 7.55 11 ND/<1.8 <1 7.41
16 0.026 0
17 0.022 0
18 0.026
19 0.027 0.038
20 0.022 0
21 0.025
22 0.027 0 ND/<5 19 7.49 11 IND/<1.8 < 1 7.45
23 0.027 0.215072 0
24 0.027 0.35
25 0.024 0.2
26 0.028 0.124096 0.32
27 0.03 0
28 0.023 0
29 0.022 0.109922 18 30 7.43 11 2 <1 7.31
30 0.025
31 0.03
TOTAL 0.822 1.264891 37.06
PEAK 0.038 0.283578 18 32 7.82 11 ND/<1.8 <0.1 7.7
MEDIAN ND/<1.8
AVERAGE 0.02651613| 0.04080294 0.0894 11.5 26.47.534 11 <1 7.412 Influent= Total as N= 35 mg/l TDS= 370mg/l
Total Kjeldahl Nitrogen= 31mg/l Nitrite= ND
Nitrate= 3.9mg/l Chloride= 86mg/l
CITY OF POINT ARENA -- PERCOLATION POND LEVELS
ORDER NO.R1-2022-0015 WDID NO.1B800450MEN
DATE POND 1 Pond 2 POND 3
January 2, 2025 4' 4' 4'
January 8, 2025 4' 3' 4'
January 15, 2025 2'6" 2'6"
January 23, 2025 1'
January 29, 2025 1' 6"
February 5, 2025 3' 2' 3'
February 12, 2025 3' 2' 3'
February 19, 2025 2' 1' 4'
February 26, 2025 1' 3" 1'
March 5, 2025 1' 0 1°
March 12, 2025 1' 0
March 19, 2025 6"* 1'6" 6"'
March 26, 2025 3" 1° 3"
April 2, 2025 6"
April 9, 2025 3" 3"
April 16, 2025 3"
April 23, 2025 3"
April 30, 2025 3" 0
May 8, 2025 3" 0
May 14, 2025
May 21, 2025 0 0
May 28, 2025 0 0
June 4, 2025 0
June 11, 2025 0
June 18, 2025
June 25, 2025 0
July 2, 2025 0 0
July 9, 2025 0
July 16, 2025 0
July 23, 2025
July 30, 2025
August 6, 2025 0
August 13, 2025 0
August 20, 2025
August 27, 2025 0
September 3, 2025 0
September 10, 2025 0
September 17, 2025 0
September 24, 2025 0
October 1, 2025 0
October 8, 2025
October 15, 2025 0
October 23, 2025 0
October 29, 2025 0
November 5, 2025
November 12, 2025
November 19, 2025
November 26, 2025
December 3, 2025
December 10, 2025
December 17, 2025
December 24, 2025
CITY OF POINT ARENA
WASTEWATER TREATMENT PLANT
YEAR OF 2025
MONITORING AND REPORTING PROGRAM NO. R1-2022-0015
INFLUENT MONITORING
MEAN DAILY FLOW,MGD 0.06816 0.11207 0.05752 0.0358 0.02774|0.03167 0.029 0002671002553 00252 MAX DAILY FLOW,MGD 0.184 0.36 0.134 0.058 0.036 0.055 0.035 0.036 0.033 0.038 RAINFALL INCHES 2.57" 9.87" 7.74" 0.57" 0.79" 0.10"* 0.15" 1.2" 2.77"
EFFLUENT MONITORING MAR APR MAY SEP OCT NOV DEC
BOD (20 DEG.C.5 DAY mg/ 8.825 14.08 16.58
TSS mg/l 21.25 34.5 73.2 59.75 99.5 107.2 34.5 26.4
HYDROGEN ION PH 7.38 7.34 7.412
SETTABLE MATTER ml/l
CHLORINE RES. Mg/l
TOTAL COLIFORM MPN/100ml |ND<1.8 ND<1.8 ND<1.8 ND<1.8 ND/<1.8 MEAN DAILY FLOW MGD 0.073270.150730.063210.040060.02563 -