Ommundsteigen

Site 12071 · Suldal municipality · Production area 2, Ryfylke

Below the lice limit, week 39Operated by Grieg Seafood Rogaland AS · group Grieg Seafood

Broodstock site: the limit may differ from the general one.

0.00Adult female lice per fishLimit 0.50 · below the limitWeek 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

15Weeks above the limit in 2026of 28 weeks with a count · broodstock: limit may differCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

1Lice treatments in 2026Latest: Medicinal bath, week 17, 20262026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Active disease casesNone recordedRegister since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026

17Wellboat visits in 2026by 2 different vessels · latest 12 Sep 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

0Escapes reportedNone reportedSince 2006 · Directorate of Fisheries · updated 01 Oct 2026

Sea lice against the limit

Weekly average of adult female lice per fish, as reported by the company. For this site the limit is 0.2 in weeks 16–21 and 0.5 for the rest of the year. Hatched weeks have no count and count neither as above nor below. Broodstock site: the limit may differ from the general one.

2026

Source: Norwegian Food Safety Authority, weekly lice counts reported by the companies · Limit: Regulation on sea lice control § 8 · Updated 01 Oct 2026Broodstock site: the limit may differ from the general one.

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Adult female lice per fish per week, 2026
Week	Adult female lice per fish	Lice limit	Status
1	0.10	0.5	Below the limit
2	0.13	0.5	Below the limit
3	0.30	0.5	Below the limit
4	0.15	0.5	Below the limit
5	0.25	0.5	Below the limit
6	0.45	0.5	Near the limit
7	0.83	0.5	Above the limit
8	1.45	0.5	Above the limit
9	0.88	0.5	Above the limit
10	1.45	0.5	Above the limit
11	1.55	0.5	Above the limit
12	1.63	0.5	Above the limit
13	1.88	0.5	Above the limit
14	1.73	0.5	Above the limit
15	1.83	0.5	Above the limit
16	1.90	0.2	Above the limit
17	0.20	0.2	Above the limit
18	0.45	0.2	Above the limit
19	0.25	0.2	Above the limit
20	0.55	0.2	Above the limit
21	0.60	0.2	Above the limit
22	0.28	0.5	Below the limit
23	0.25	0.5	Below the limit
24	0.14	0.5	Below the limit
25	0.18	0.5	Below the limit
26	0.20	0.5	Below the limit
27	unknown	0.5	Not reported
28	unknown	0.5	Not reported
29	unknown	0.5	Not reported
30	unknown	0.5	Not reported
31	unknown	0.5	Not reported
32	unknown	0.5	Not reported
33	unknown	0.5	Not reported
34	unknown	0.5	Not reported
35	unknown	0.5	Not reported
36	unknown	0.5	Not reported
37	unknown	0.5	Not reported
38	0.00	0.5	Below the limit
39	0.00	0.5	Below the limit

Earlier years

20250 of 52 weeks with a count above the limit

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Adult female lice per fish per week, 2025
Week	Adult female lice per fish	Lice limit	Status
1	0.00	0.5	Below the limit
2	0.02	0.5	Below the limit
3	0.04	0.5	Below the limit
4	0.02	0.5	Below the limit
5	0.03	0.5	Below the limit
6	0.33	0.5	Below the limit
7	0.07	0.5	Below the limit
8	0.06	0.5	Below the limit
9	0.04	0.5	Below the limit
10	0.08	0.5	Below the limit
11	0.08	0.5	Below the limit
12	0.10	0.5	Below the limit
13	0.10	0.5	Below the limit
14	0.10	0.5	Below the limit
15	0.11	0.5	Below the limit
16	0.19	0.2	Near the limit
17	0.00	0.2	Below the limit
18	0.05	0.2	Below the limit
19	0.05	0.2	Below the limit
20	0.05	0.2	Below the limit
21	0.08	0.2	Below the limit
22	0.09	0.5	Below the limit
23	0.09	0.5	Below the limit
24	0.08	0.5	Below the limit
25	0.08	0.5	Below the limit
26	0.05	0.5	Below the limit
27	0.03	0.5	Below the limit
28	0.03	0.5	Below the limit
29	0.03	0.5	Below the limit
30	0.05	0.5	Below the limit
31	0.08	0.5	Below the limit
32	0.08	0.5	Below the limit
33	0.05	0.5	Below the limit
34	0.08	0.5	Below the limit
35	0.13	0.5	Below the limit
36	0.28	0.5	Below the limit
37	0.20	0.5	Below the limit
38	0.40	0.5	Near the limit
39	0.25	0.5	Below the limit
40	0.38	0.5	Below the limit
41	0.43	0.5	Near the limit
42	0.40	0.5	Near the limit
43	0.38	0.5	Below the limit
44	0.30	0.5	Below the limit
45	0.48	0.5	Near the limit
46	0.00	0.5	Below the limit
47	0.00	0.5	Below the limit
48	0.00	0.5	Below the limit
49	0.00	0.5	Below the limit
50	0.00	0.5	Below the limit
51	0.18	0.5	Below the limit
52	0.18	0.5	Below the limit

202424 of 38 weeks with a count above the limit

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Adult female lice per fish per week, 2024
Week	Adult female lice per fish	Lice limit	Status
1	0.50	0.5	Above the limit
2	0.53	0.5	Above the limit
3	0.65	0.5	Above the limit
4	0.60	0.5	Above the limit
5	0.88	0.5	Above the limit
6	1.13	0.5	Above the limit
7	1.60	0.5	Above the limit
8	1.23	0.5	Above the limit
9	1.58	0.5	Above the limit
10	1.58	0.5	Above the limit
11	1.55	0.5	Above the limit
12	1.50	0.5	Above the limit
13	1.55	0.5	Above the limit
14	1.85	0.5	Above the limit
15	1.30	0.5	Above the limit
16	0.45	0.2	Above the limit
17	0.57	0.2	Above the limit
18	0.67	0.2	Above the limit
19	0.87	0.2	Above the limit
20	0.53	0.2	Above the limit
21	0.73	0.2	Above the limit
22	0.70	0.5	Above the limit
23	0.77	0.5	Above the limit
24	1.50	0.5	Above the limit
25	unknown	0.5	Reported without a count
26	unknown	0.5	Reported without a count
27	unknown	0.5	Not reported
28	unknown	0.5	Not reported
29	unknown	0.5	Not reported
30	unknown	0.5	Not reported
31	unknown	0.5	Not reported
32	unknown	0.5	Not reported
33	unknown	0.5	Not reported
34	unknown	0.5	Not reported
35	unknown	0.5	Not reported
36	unknown	0.5	Not reported
37	unknown	0.5	Not reported
38	unknown	0.5	Not reported
39	0.00	0.5	Below the limit
40	0.00	0.5	Below the limit
41	0.00	0.5	Below the limit
42	0.00	0.5	Below the limit
43	0.00	0.5	Below the limit
44	0.01	0.5	Below the limit
45	0.00	0.5	Below the limit
46	0.00	0.5	Below the limit
47	0.00	0.5	Below the limit
48	0.00	0.5	Below the limit
49	0.00	0.5	Below the limit
50	0.00	0.5	Below the limit
51	0.00	0.5	Below the limit
52	0.00	0.5	Below the limit

20230 of 13 weeks with a count above the limit (data from week 40)

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Adult female lice per fish per week, 2023
Week	Adult female lice per fish	Lice limit	Status
40	0.00	0.5	Below the limit
41	0.00	0.5	Below the limit
42	0.00	0.5	Below the limit
43	0.15	0.5	Below the limit
44	0.15	0.5	Below the limit
45	0.03	0.5	Below the limit
46	0.03	0.5	Below the limit
47	0.13	0.5	Below the limit
48	0.15	0.5	Below the limit
49	0.05	0.5	Below the limit
50	0.25	0.5	Below the limit
51	0.13	0.5	Below the limit
52	0.25	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 17, 2026
Medicinal bathWhole site · Azamethiphos
Week 46, 2025
Freshwater treatmentWhole site
Week 17, 2025
Medicinal bathWhole site · Azamethiphos
Week 6, 2025
Freshwater treatment3 pens

Disease

Norwegian Food Safety Authority

No cases in the Food Safety Authority's register of notifiable diseases (since 26 Nov 2024).

Escapes

Directorate of Fisheries

No escapes reported from this site since 2006.

Wellboat visits

17 visits in 2026

Visits are derived by us from the Coastal Administration's AIS positions: a fish carrier stationary within 500 metres of the farm for at least 30 minutes. The AIS archive lags about 17 days. A visit is not proof of infection.

Arrival	Vessel	Previous farm (14 days)	Duration
12 Sep 2026	Ro Spirit	Furevika	2 h 22 min
10 Jul 2026	Ronja Azul	Kilavågen Sjø	3 h 27 min
09 Jul 2026	Ronja Azul	Porsvika	3 h 22 min
28 Jun 2026	Ronja Azul	Tollaksholmen	1 h 43 min
16 Jun 2026	Ronja Azul	Nordeimsøyna	1 h 6 min
05 Jun 2026	Ronja Azul	Store Teistholmen Ø	3 h 26 min
23 May 2026	Ronja Azul	Kjeura	2 h 17 min
10 May 2026	Ronja Azul	Teigane	5 h 34 min
21 Apr 2026	Ronja Azul	Teigane	2 h 3 min
21 Apr 2026	Ronja Azul	Teigane	3 h 23 min
21 Apr 2026	Ronja Azul	Teigane	2 h 49 min
20 Apr 2026	Ronja Azul	Teigane	3 h 20 min

Show 28 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
20 Apr 2026	Ronja Azul	Teigane	1 h 49 min
14 Mar 2026	Ronja Azul	Helgøy	2 h 18 min
15 Feb 2026	Ronja Azul	Helgøy	2 h 56 min
07 Feb 2026	Ronja Azul	Dyrholmen	7 h 39 min
30 Jan 2026	Ronja Azul	Store Teistholmen Ø	3 h 37 min
16 Nov 2025	Ronja Azul	Helgøy	9 h 2 min
15 Nov 2025	Ronja Azul	Helgøy	9 h 31 min
14 Nov 2025	Ronja Azul	Helgøy	10 h 36 min
13 Nov 2025	Ronja Azul	Breivik S	5 h 18 min
06 Sep 2025	Ronja Superior	Helgøy	2 h 22 min
25 Apr 2025	Ronja Azul	Helgøy	3 h 11 min
24 Apr 2025	Ronja Azul	Helgøy	7 h 6 min
24 Apr 2025	Ronja Azul	Helgøy	5 h 38 min
08 Apr 2025	Ronja Azul	Tollaksholmen	2 h 17 min
10 Feb 2025	Ronja Azul	Rennaren	3 h 24 min
09 Feb 2025	Ronja Azul	Rennaren	14 h 33 min
01 Oct 2024	Ronja Mistral	Herøy	1 h 9 min
13 Sep 2024	Ronja Azul	Dyrholmen	7 h 13 min
25 Jun 2024	Ronja Azul	Helgøy	2 h 11 min
18 Jun 2024	Ronja Azul	Helgøy	2 h 10 min
09 May 2024	Ronja Azul	Kilavågen Sjø	2 h 34 min
05 May 2024	Ronja Azul	Helgøy	5 h 7 min
04 May 2024	Ronja Azul	Helgøy	3 h 30 min
21 Apr 2024	Ronja Azul	Tollaksholmen	5 h 7 min
27 Mar 2024	Ronja Silver	Helgøy	7 h 3 min
24 Mar 2024	Ronja Silver	Helgøy	3 h 4 min
29 Jan 2024	Ronja Silver	Helgøy	6 h 30 min
22 Jan 2024	Ronja Silver	Helgøy	9 h 58 min

Source: Norwegian Coastal Administration (AIS) · calculated by the Salmon Ledger · updated 01 Oct 2026

Who has reported

The companies that have submitted lice counts for this site, with the first and last week.

Company	From	To
Grieg Seafood Rogaland AS	Week 40, 2023	Week 39, 2026
Cermaq Finnmark Farming AS	Week 50, 2024	Week 17, 2025

Source: Norwegian Food Safety Authority (organisation number on each lice report)

Licences

Site MAB: 1,040 tonnes

Licence	Type	Capacity	Holder
R SD 0008	Forskning / matfiskSalmon, Rainbow trout, Trout	780 t	Grieg Seafood Rogaland AS
R SD 0025	Kommersiell / stamfiskSalmon	780 t	Grieg Seafood Rogaland AS

Source: Directorate of Fisheries, aquaculture register · updated 01 Oct 2026